Friday, 16 August 2013

Canon 3-in-1 Colour Inkjet Printer

Canon 3-in-1 Colour Inkjet Printer
Canon 3-in-1 Colour Inkjet Printer
R 1399.00

Features
Model: MG5440
Print speed (black): 15 pages per minute
Print speed (colour): 10 pages per minute
10cm x 15cm photo +/- 20 seconds
Print resolution: 9600 x 2400 dpi
Connectivity: Wi-Fi

The OKI C531dn - LED-based Printer

Design

Strictly speaking, the OKI C531dn is an LED-based printer, as opposed to a laser printer. LED printers use light-emitting diodes (LEDs) as a light source instead of lasers. In a laser printer, a laser draws the image to be printed onto a charged cylindrical drum, which attracts the particles of toner and transfers them to paper. In an LED printer, the principle is the same, but the laser is replaced by an array of LEDs. Because it functions otherwise like a laser printer, including using toner cartridges and an image drum to print your pages, LED printers are considered to be “laser-class” printers.
As you might expect, there's usually a direct relationship between the size of a workgroup printer and its paper capacity. (After all, the paper has to go somewhere.) This particular model is relatively compact, with a somewhat skimpy paper capacity. At 9.5 inches high, 16.1 inches wide, and 19.8 inches deep, the C531dn sits lower than many competing color lasers. That might allow you to place it into a low-clearance area—even on a desktop or under low-hanging shelves—where other printers might not fit.
To keep the profile low, the main paper tray holds only 250 sheets, while a second, multipurpose tray lets you add another 100 sheets. If you routinely use your second tray either for envelopes or letterhead, you may chafe at having only 250 sheets available in the other tray. Fortunately, you can get an optional 530-page tray ($199) that attaches to the bottom of the unit. With that tray attached, you'll have an ample 880-page total capacity across your three trays.

 

OKI Data C531dn Secondary Tray
You can expand the onboard 350-sheet capacity by adding an optional 530-page tray to the bottom of the unit.

 

The chassis construction seemed substantial enough. All the doors, hinges, trays, and buttons felt solid and durable. This model weighs in at a hefty 48.5 pounds, which indicates a fair amount of metal and high-grade plastic inside.
OKI provides a strong warranty for this model. The printhead is covered for five years, and the rest of the printer is covered for three. You can also purchase various options that will extend the warranty or shorten the turnaround time for any needed repairs.
In keeping with its no-frills appearance, the printer's control panel is basic yet functional. A small, backlit 2-inch LCD shows 32 alphanumeric characters at a time, in two rows of 16 characters each. It displays the onboard menu system, as well as various status updates. You use a five-point circular control, along with a back button, to navigate the menu options on the text-based LCD. It's all rather bare-bones, but it’s sufficient to get the job done.

 

OKI Data C531dn Control Panel
The C531dn's control panel is bare-bones but functional.

 

Once you get beyond the 1990s-era control panel, you'll find a fairly comprehensive set of menu options, including a wide range of printer settings, administrator and security options, network interface settings, maintenance configurations, and print statistics. The supplied user manual lists and explains all the menu selections. That's good, because navigating through so many options can become tedious when you have only basic navigation controls at your disposal.

This model can handle a broad range of paper sizes, from 3x5-inch index cards to 8.5-inch-wide banners up to 52 inches long. You'll need to print the index cards and banners using the multipurpose tray. That tray can also handle various card stocks, labels, and envelopes. It can load as many as 10 envelopes or 100 sheets of standard-size paper at a time. The main tray, meanwhile, can handle legal-size as well as letter-size paper. And the duplex feature can work with any paper that's compatible with the main tray, except for A6-sized paper (5.8x4.1 inches).

NO-NONSENSE BUYING

LAPTOPS, DESKTOPS, PRINTERS, MEMORY, HARD DRIVES, ANY COMPUTER PRODUCT, WHATEVER YOU LOOKING FOR WE'VE GOT YOU!!!


Ultrabooks and Laptops – the definitions
Laptops, as probably all of you know, are mobile personal computers and come in a wide range of forms and sizes. They can sport displays between 10 to 20 inches in diagonal, they can weigh anywhere from two to 18 pounds and pack a multitude of hardware configurations and various features.
Ultrabooks are laptops after all, but not all laptops are ultrabooks.
Ultrabooks are just a special kin of laptops
The most popular laptops right now are probably the 15.6-inchers, which are in most cases powerful enough to replace a desktop for casual daily use (browsing, chatting, listening to music, watching movies, playing some games), but also light and portable enough to be carried from place to place when needed.
Ultrabooks, on the other hand, are more ‘’specific’’ portable computers. They are light and thin, as well as powerful and elegant. You’ll find them with screen ranging from 11.6 to 15.6 inches in diagonal, packing efficient but still snappy processors from Intel and able to run for several hours on each battery charge.
Contact Essential Worx, Computers and so much more.

10 Differences Between Macs and PCs

Start the Countdown

If you were to wade into the middle of any large technology conference and shout out "Macs are whack" or "Apple rules, Microsoft stinks," you could start a riot. The conflict between Apple supporters and Windows fans has raged on college campuses, social networks and Internet message boards. It's a discussion that invites flame wars. Put on your fireproof britches, we're going to wade right into it.
Before we throw caution to the wind, we need to establish some definitions. In this article, we're comparing Applecomputers running Mac OS X -- no hackintoshes to be found here -- and computers running the Windows operating system. While the term PC stands for personal computer and could apply to Macs, Windows machines and computers running other operating systems alike, we're using it in the common vernacular as shorthand for a Windows machine.
Given the passion often displayed by owners of both brands, you may be surprised to learn what a small share of the global computer market Apple actually controls. While the sales of iPhones, iPods and iPads provide a strong boost to Apple's overall earnings, Macs account for less than 5 percent of computers worldwide [source: Cyran and Gu]. However, the Mac boasts an impressive growth rate: Shipments increased 27.7 percent in the first quarter of 2011 over the same period in 2010, even as overall computer shipments dropped 1.2 percent [source: Elmer-DeWitt].
So, which is better -- Mac or PC? Click through our list of 10 differences between Macs and PCs and decide for yourself.
Design
If you were to wade into the middle of any large technology conference and shout out "Macs are whack" or "Apple rules, Microsoft stinks," you could start a riot. The conflict between Apple supporters and Windows fans has raged on college campuses, social networks and Internet message boards. It's a discussion that invites flame wars. Put on your fireproof britches, we're going to wade right into it.
Before we throw caution to the wind, we need to establish some definitions. In this article, we're comparing Applecomputers running Mac OS X -- no hackintoshes to be found here -- and computers running the Windows operating system. While the term PC stands for personal computer and could apply to Macs, Windows machines and computers running other operating systems alike, we're using it in the common vernacular as shorthand for a Windows machine.
Given the passion often displayed by owners of both brands, you may be surprised to learn what a small share of the global computer market Apple actually controls. While the sales of iPhones, iPods and iPads provide a strong boost to Apple's overall earnings, Macs account for less than 5 percent of computers worldwide [source: Cyran and Gu]. However, the Mac boasts an impressive growth rate: Shipments increased 27.7 percent in the first quarter of 2011 over the same period in 2010, even as overall computer shipments dropped 1.2 percent [source: Elmer-DeWitt].
So, which is better -- Mac or PC? Click through our list of 10 differences between Macs and PCs and decide for yourself.
If you grew up in the 1980s, the concept of design might seem like a superficial and unimportant aspect of a computer. But design is a big differentiator between Macs and PCs. For the better part of three decades, former Apple CEO Steve Jobs focused on the outward appearance of his company's products with an enthusiasm unmatched by his competitors. The unique designs that resulted from this obsession have given Mac products the "hip" image that they enjoy today.
This unconventional focus on design began with the very first Macintosh, introduced in 1984. Like many of the computers in Apple's current line, its CPU and monitor were housed in a single unit, reducing the number of cables necessary for operation and creating a sleeker profile. Perhaps Jobs's and Apple designer Jonathan Ive's most significant success was the iMac, introduced in 1998. With its translucent, candy-colored shell, this model reversed Apple's flagging fortunes and represented the start of its rise to present-day popularity. Today, some PC manufacturers are attempting to create more design-oriented models, but none have achieved the popular acclaim commanded by Mac products.
On the flip side, PCs don't come from a single manufacturer. There are hundreds of different designs of PCs on the market, ranging from the utilitarian design of most business PCs to the space-age aesthetics of Alienware's gaming PC line of computers. You might find some designs more compelling than Apple's approach, but there's no single vision guiding aesthetic choices when it comes to the design of the PC. That's not necessarily a bad thing -- if you don't like one design, you can look to a different manufacturer to consider other options. If you don't like Apple's design, you're out of luck if you absolutely have to own a Mac.
Price
One of the most frequently cited differences between Macs and PCs is price. Few Mac products sell for less than $1,000, while there are dozens of PC models that fall within that price range. However, this doesn't necessarily mean that Macs are more expensive than PCs with similar specifications. Rather, in general, Apple has chosen to build its Mac line around higher-end computers with better -- and more costly -- components.
The problem with comparing prices between Macs and PCs is that the computers are rarely comparable. Even if you did find two computers with the same processor speed, RAM, hard drive capacity, graphics, memory, number of USB ports, and so on, each of them would be preinstalled with vastly different software packages. The user may have to purchase additional software for whatever computer he or she chooses, like a virus program for a PC or Microsoft Office for a Mac. The bottom line is this: The relative value of a Mac or PC really depends on the consumer's needs.
If you just need a computer to perform basic functions like Web surfing or word processing, it might be hard to justify buying a Mac. There are plenty of PC choices out there that are less expensive. And this is where Linux fans can chime in -- even someone unfamiliar with the Linux operating system can buy a cheap computer, install a simple Linux distribution and access basic computer functions.
Technical Specifications
The technical specifications offered by Macs and PCs can be very similar or very different, depending on which brand and line you're comparing. While they both have similar internal parts (processors, RAMhard drives, video cards), the speed and capacity of these components vary. Macs will generally outperform low-end PCs, because the Apple product lines typically boast more expensive and better-quality parts. Comparing Macs with higher-end PCs is a little more difficult. Generally, though, Macs have faster processors than their Windows counterparts but tend to skimp slightly when it comes to RAM, hard disk space and USB ports.
The kinds of connections and optical drives found on Macs and PCs also differ in certain ways. Macs offer a pretty standard selection of such features, including a SuperDrive (reads and writes CDs and DVDs), audio in and audio out, USB, FireWire (data transfer), Thunderbolt (video output), Ethernet, and a magnetized power port. PCs offer comparable features, plus a few more, like Blu-ray players, TV tuners, touch screens andHDMI ports.
Choice
Perhaps the most obvious difference between a Mac and a PC is the number of configurations available for each brand. Currently, Apple offers just five computer lines: the MacBook Air, the MacBook Pro, the Mac mini, the iMac and the Mac Pro. Even if each configuration of these models is counted individually, as of this writing Apple only offers a total of 18 unique computers. This limited selection is not a sign of weakness, but a part of the company's "less is more" approach to marketing.
PCs, on the other hand, come in a wide variety of shapes and sizes. Consumer Reports reviews 11 distinct brands of Windows-based computers, including Acer, Asus, Compaq, Dell, eMachines, Gateway, HP, Lenovo, Samsung, Sony and Toshiba, each offering numerous configurations of desktop and laptop models. Many consumers see this large selection as a benefit because they're more likely to find a computer that meets their exact needs.
Availability

If you were to wade into the middle of any large technology conference and shout out "Macs are whack" or "Apple rules, Microsoft stinks," you could start a riot. The conflict between Apple supporters and Windows fans has raged on college campuses, social networks and Internet message boards. It's a discussion that invites flame wars. Put on your fireproof britches, we're going to wade right into it.
Before we throw caution to the wind, we need to establish some definitions. In this article, we're comparing Applecomputers running Mac OS X -- no hackintoshes to be found here -- and computers running the Windows operating system. While the term PC stands for personal computer and could apply to Macs, Windows machines and computers running other operating systems alike, we're using it in the common vernacular as shorthand for a Windows machine.
Given the passion often displayed by owners of both brands, you may be surprised to learn what a small share of the global computer market Apple actually controls. While the sales of iPhones, iPods and iPads provide a strong boost to Apple's overall earnings, Macs account for less than 5 percent of computers worldwide [source: Cyran and Gu]. However, the Mac boasts an impressive growth rate: Shipments increased 27.7 percent in the first quarter of 2011 over the same period in 2010, even as overall computer shipments dropped 1.2 percent [source: Elmer-DeWitt].
So, which is better -- Mac or PC? Click through our list of 10 differences between Macs and PCs and decide for yourself.
If you grew up in the 1980s, the concept of design might seem like a superficial and unimportant aspect of a computer. But design is a big differentiator between Macs and PCs. For the better part of three decades, former Apple CEO Steve Jobs focused on the outward appearance of his company's products with an enthusiasm unmatched by his competitors. The unique designs that resulted from this obsession have given Mac products the "hip" image that they enjoy today.
This unconventional focus on design began with the very first Macintosh, introduced in 1984. Like many of the computers in Apple's current line, its CPU and monitor were housed in a single unit, reducing the number of cables necessary for operation and creating a sleeker profile. Perhaps Jobs's and Apple designer Jonathan Ive's most significant success was the iMac, introduced in 1998. With its translucent, candy-colored shell, this model reversed Apple's flagging fortunes and represented the start of its rise to present-day popularity. Today, some PC manufacturers are attempting to create more design-oriented models, but none have achieved the popular acclaim commanded by Mac products.
On the flip side, PCs don't come from a single manufacturer. There are hundreds of different designs of PCs on the market, ranging from the utilitarian design of most business PCs to the space-age aesthetics of Alienware's gaming PC line of computers. You might find some designs more compelling than Apple's approach, but there's no single vision guiding aesthetic choices when it comes to the design of the PC. That's not necessarily a bad thing -- if you don't like one design, you can look to a different manufacturer to consider other options. If you don't like Apple's design, you're out of luck if you absolutely have to own a Mac.

MAC ATTACK

A study conducted by market research firm NPD found that 79 percent of all computers bought at U.S. retail stores in October 2010 were Windows PCs. However, of those that sold for $1,000 or more, 88 percent were Macs [source:McCracken].  
One of the most frequently cited differences between Macs and PCs is price. Few Mac products sell for less than $1,000, while there are dozens of PC models that fall within that price range. However, this doesn't necessarily mean that Macs are more expensive than PCs with similar specifications. Rather, in general, Apple has chosen to build its Mac line around higher-end computers with better -- and more costly -- components.
The problem with comparing prices between Macs and PCs is that the computers are rarely comparable. Even if you did find two computers with the same processor speed, RAM, hard drive capacity, graphics, memory, number of USB ports, and so on, each of them would be preinstalled with vastly different software packages. The user may have to purchase additional software for whatever computer he or she chooses, like a virus program for a PC or Microsoft Office for a Mac. The bottom line is this: The relative value of a Mac or PC really depends on the consumer's needs.
If you just need a computer to perform basic functions like Web surfing or word processing, it might be hard to justify buying a Mac. There are plenty of PC choices out there that are less expensive. And this is where Linux fans can chime in -- even someone unfamiliar with the Linux operating system can buy a cheap computer, install a simple Linux distribution and access basic computer functions.
The technical specifications offered by Macs and PCs can be very similar or very different, depending on which brand and line you're comparing. While they both have similar internal parts (processors, RAMhard drives, video cards), the speed and capacity of these components vary. Macs will generally outperform low-end PCs, because the Apple product lines typically boast more expensive and better-quality parts. Comparing Macs with higher-end PCs is a little more difficult. Generally, though, Macs have faster processors than their Windows counterparts but tend to skimp slightly when it comes to RAM, hard disk space and USB ports.
The kinds of connections and optical drives found on Macs and PCs also differ in certain ways. Macs offer a pretty standard selection of such features, including a SuperDrive (reads and writes CDs and DVDs), audio in and audio out, USB, FireWire (data transfer), Thunderbolt (video output), Ethernet, and a magnetized power port. PCs offer comparable features, plus a few more, like Blu-ray players, TV tuners, touch screens andHDMI ports.

TAKE TWO TABLETS AND CALL ME IN THE MORNING

Take a look at Mac OS X Lion for Macintosh computers and iOS, Apple's operating system for mobile devices, and you'll notice some similarities. But Windows 8 will be Microsoft's attempt to create a unified operating system for tablets and personal computers... Soon, customer choice will include not only desktops, laptops and netbooks -- tablets could become the next PC form factor.    
Perhaps the most obvious difference between a Mac and a PC is the number of configurations available for each brand. Currently, Apple offers just five computer lines: the MacBook Air, the MacBook Pro, the Mac mini, the iMac and the Mac Pro. Even if each configuration of these models is counted individually, as of this writing Apple only offers a total of 18 unique computers. This limited selection is not a sign of weakness, but a part of the company's "less is more" approach to marketing.
PCs, on the other hand, come in a wide variety of shapes and sizes. Consumer Reports reviews 11 distinct brands of Windows-based computers, including Acer, Asus, Compaq, Dell, eMachines, Gateway, HP, Lenovo, Samsung, Sony and Toshiba, each offering numerous configurations of desktop and laptop models. Many consumers see this large selection as a benefit because they're more likely to find a computer that meets their exact needs.
When it comes to third-party retail stores, Apple is more selective than the PC manufacturers about where it will sell its products. The California company's flagship retail outlet is the Apple Store, which first opened its doors in 2001 at the Tysons Corner Mall in McLean, Va. Since then, Apple has opened more than 300 additional stores in 43 states and 11 countries [source: [source: Apple]. Because these outlets are generally built only in large population centers, Apple has entered into several on-again off-again agreements with electronics chains like Best Buy, CompUSA, Computer City, Fry's Electronics, Micro Center, Office Max and Sears to reach a broader customer base. Still, Macs aren't available at many of the stores that sell PCs -- namely the world's largest retailer, Walmart. Of course, you can order Macs and Windows machines from stores on the Internet, as well.
Microsoft has a very different strategy. The company doesn't make hardware -- it licenses its Windows operating system to other companies. Most of those companies push their products into as many stores as they can. So while you might not see an Apple computer in your local computer shop, you'll see dozens of Windows PCs.
Operating Systems
The operating system has been a long-standing difference between Mac and PC; currently, Mac computers are preinstalled with OS X Lion, while PCs come with Microsoft Windows 7. Between 2007 and 2009, when Windows Vistawas Microsoft's operating system, OS X was widely regarded as the better of the two software packages. Vista was sluggish, prone to crashing and plagued by pop-up dialogue boxes. However, Microsoft has made significant improvements in the stability and performance of Windows 7, making the current choice more a matter of personal preference in terms of functionality and layout.
A significant development in this debate occurred in 2006, when Apple announced the release of its Boot Camp software, which allows users to install Windows on their Intel-based Macs. Today, there are many programs that facilitate the installation of Windows on a Mac, including Parallels Desktop, VMware Fusion and VirtualBox. In contrast, you aren't supposed to install Mac OS X on any Windows PC. Getting Mac OS X to work on a non-Apple computer is tricky -- we call such machines hackintoshes. They tend to be unstable, and selling them is bound to get you into trouble with Apple.
Users
Before we throw caution to the wind, we need to establish some definitions. In this article, we're comparing Applecomputers running Mac OS X -- no hackintoshes to be found here -- and computers running the Windows operating system. While the term PC stands for personal computer and could apply to Macs, Windows machines and computers running other operating systems alike, we're using it in the common vernacular as shorthand for a Windows machine.
Given the passion often displayed by owners of both brands, you may be surprised to learn what a small share of the global computer market Apple actually controls. While the sales of iPhones, iPods and iPads provide a strong boost to Apple's overall earnings, Macs account for less than 5 percent of computers worldwide [source: Cyran and Gu]. However, the Mac boasts an impressive growth rate: Shipments increased 27.7 percent in the first quarter of 2011 over the same period in 2010, even as overall computer shipments dropped 1.2 percent [source: Elmer-DeWitt].
So, which is better -- Mac or PC? Click through our list of 10 differences between Macs and PCs and decide for yourself.
If you grew up in the 1980s, the concept of design might seem like a superficial and unimportant aspect of a computer. But design is a big differentiator between Macs and PCs. For the better part of three decades, former Apple CEO Steve Jobs focused on the outward appearance of his company's products with an enthusiasm unmatched by his competitors. The unique designs that resulted from this obsession have given Mac products the "hip" image that they enjoy today.
This unconventional focus on design began with the very first Macintosh, introduced in 1984. Like many of the computers in Apple's current line, its CPU and monitor were housed in a single unit, reducing the number of cables necessary for operation and creating a sleeker profile. Perhaps Jobs's and Apple designer Jonathan Ive's most significant success was the iMac, introduced in 1998. With its translucent, candy-colored shell, this model reversed Apple's flagging fortunes and represented the start of its rise to present-day popularity. Today, some PC manufacturers are attempting to create more design-oriented models, but none have achieved the popular acclaim commanded by Mac products.
On the flip side, PCs don't come from a single manufacturer. There are hundreds of different designs of PCs on the market, ranging from the utilitarian design of most business PCs to the space-age aesthetics of Alienware's gaming PC line of computers. You might find some designs more compelling than Apple's approach, but there's no single vision guiding aesthetic choices when it comes to the design of the PC. That's not necessarily a bad thing -- if you don't like one design, you can look to a different manufacturer to consider other options. If you don't like Apple's design, you're out of luck if you absolutely have to own a Mac.

MAC ATTACK

A study conducted by market research firm NPD found that 79 percent of all computers bought at U.S. retail stores in October 2010 were Windows PCs. However, of those that sold for $1,000 or more, 88 percent were Macs [source:McCracken].  
One of the most frequently cited differences between Macs and PCs is price. Few Mac products sell for less than $1,000, while there are dozens of PC models that fall within that price range. However, this doesn't necessarily mean that Macs are more expensive than PCs with similar specifications. Rather, in general, Apple has chosen to build its Mac line around higher-end computers with better -- and more costly -- components.
The problem with comparing prices between Macs and PCs is that the computers are rarely comparable. Even if you did find two computers with the same processor speed, RAM, hard drive capacity, graphics, memory, number of USB ports, and so on, each of them would be preinstalled with vastly different software packages. The user may have to purchase additional software for whatever computer he or she chooses, like a virus program for a PC or Microsoft Office for a Mac. The bottom line is this: The relative value of a Mac or PC really depends on the consumer's needs.
If you just need a computer to perform basic functions like Web surfing or word processing, it might be hard to justify buying a Mac. There are plenty of PC choices out there that are less expensive. And this is where Linux fans can chime in -- even someone unfamiliar with the Linux operating system can buy a cheap computer, install a simple Linux distribution and access basic computer functions.
The technical specifications offered by Macs and PCs can be very similar or very different, depending on which brand and line you're comparing. While they both have similar internal parts (processors, RAMhard drives, video cards), the speed and capacity of these components vary. Macs will generally outperform low-end PCs, because the Apple product lines typically boast more expensive and better-quality parts. Comparing Macs with higher-end PCs is a little more difficult. Generally, though, Macs have faster processors than their Windows counterparts but tend to skimp slightly when it comes to RAM, hard disk space and USB ports.
The kinds of connections and optical drives found on Macs and PCs also differ in certain ways. Macs offer a pretty standard selection of such features, including a SuperDrive (reads and writes CDs and DVDs), audio in and audio out, USB, FireWire (data transfer), Thunderbolt (video output), Ethernet, and a magnetized power port. PCs offer comparable features, plus a few more, like Blu-ray players, TV tuners, touch screens andHDMI ports.

TAKE TWO TABLETS AND CALL ME IN THE MORNING

Take a look at Mac OS X Lion for Macintosh computers and iOS, Apple's operating system for mobile devices, and you'll notice some similarities. But Windows 8 will be Microsoft's attempt to create a unified operating system for tablets and personal computers... Soon, customer choice will include not only desktops, laptops and netbooks -- tablets could become the next PC form factor.    
Perhaps the most obvious difference between a Mac and a PC is the number of configurations available for each brand. Currently, Apple offers just five computer lines: the MacBook Air, the MacBook Pro, the Mac mini, the iMac and the Mac Pro. Even if each configuration of these models is counted individually, as of this writing Apple only offers a total of 18 unique computers. This limited selection is not a sign of weakness, but a part of the company's "less is more" approach to marketing.
PCs, on the other hand, come in a wide variety of shapes and sizes. Consumer Reports reviews 11 distinct brands of Windows-based computers, including Acer, Asus, Compaq, Dell, eMachines, Gateway, HP, Lenovo, Samsung, Sony and Toshiba, each offering numerous configurations of desktop and laptop models. Many consumers see this large selection as a benefit because they're more likely to find a computer that meets their exact needs.
When it comes to third-party retail stores, Apple is more selective than the PC manufacturers about where it will sell its products. The California company's flagship retail outlet is the Apple Store, which first opened its doors in 2001 at the Tysons Corner Mall in McLean, Va. Since then, Apple has opened more than 300 additional stores in 43 states and 11 countries [source: [source: Apple]. Because these outlets are generally built only in large population centers, Apple has entered into several on-again off-again agreements with electronics chains like Best Buy, CompUSA, Computer City, Fry's Electronics, Micro Center, Office Max and Sears to reach a broader customer base. Still, Macs aren't available at many of the stores that sell PCs -- namely the world's largest retailer, Walmart. Of course, you can order Macs and Windows machines from stores on the Internet, as well.
Microsoft has a very different strategy. The company doesn't make hardware -- it licenses its Windows operating system to other companies. Most of those companies push their products into as many stores as they can. So while you might not see an Apple computer in your local computer shop, you'll see dozens of Windows PCs.

The operating system has been a long-standing difference between Mac and PC; currently, Mac computers are preinstalled with OS X Lion, while PCs come with Microsoft Windows 7. Between 2007 and 2009, when Windows Vistawas Microsoft's operating system, OS X was widely regarded as the better of the two software packages. Vista was sluggish, prone to crashing and plagued by pop-up dialogue boxes. However, Microsoft has made significant improvements in the stability and performance of Windows 7, making the current choice more a matter of personal preference in terms of functionality and layout.
A significant development in this debate occurred in 2006, when Apple announced the release of its Boot Camp software, which allows users to install Windows on their Intel-based Macs. Today, there are many programs that facilitate the installation of Windows on a Mac, including Parallels Desktop, VMware Fusion and VirtualBox. In contrast, you aren't supposed to install Mac OS X on any Windows PC. Getting Mac OS X to work on a non-Apple computer is tricky -- we call such machines hackintoshes. They tend to be unstable, and selling them is bound to get you into trouble with Apple.
Apple has worked very hard to craft a fun and hip image for its line of Mac computers, while simultaneously portraying PCs as dull and nerdy. This strategy played out most famously in Apple's recent advertising campaign featuring "Mac," played by the younger, hoodie-wearing Justin Long and "PC," played by the older, bespectacled John Hodgman. But is there actually any truth to these stereotypes?
In April 2011, the Internet was abuzz with the results of a survey on this very topic, conducted by Hunch, a Web site that makes recommendations based on user preferences. It asked users to identify themselves as a Mac or PC person, and then questioned them about a number of self-identifying factors. The results were comically stereotypical. Among the findings were that Mac users were more likely to be liberal, eat hummus and read The New York Times. PC users, on the other hand, were more conservative, had a better grasp on mathematical concepts, and, unlike their Mac counterparts, would rather ride a Harley than a Vespa [source: [source: Hunch]. While these results are certainly interesting, they can't be taken too seriously -- Hunch made these conclusions based on an admittedly unscientific survey.
One thing that both Mac and Windows PC fans have in common is passion for the brands themselves. Get a diverse group of computer users together and introduce the subject of Macs versus PCs and watch the sparks fly! Mac users will bring up concepts like security, usability and design. PC owners will counter with price, software compatibility and choice. It can get really ugly really fast (but it's fun to watch).
Software
One of the most important reasons Mac hasn't captured a larger share of the computer market is the lack of software written for its operating system. This insufficiency is most obvious in business computing, where most applications were standardized on Windows PCs years ago. Even if a business did determine that Mac offered a better product, it would take a tremendous amount of time and money to make the switch. Mac has made some inroads by collaborating with Microsoft on the popular Office Suite, but the shortage of specialized business software remains a concern for many companies.
It's not just work that is hindered by Mac's limited software selection -- it's also play. Most computer gamers gravitate toward the PC, thanks to the wide selection of recreational software offered for Windows systems. Mac has slowly expanded its offerings to include popular games like Civilization, Duke Nukem, Starcraft and World of Warcraft, but it still lags behind the PC in selection. A search on the online gaming platform Steam reveals about 180 games for Mac and more than 1,300 for PC [source: Steam].
Security

If you were to wade into the middle of any large technology conference and shout out "Macs are whack" or "Apple rules, Microsoft stinks," you could start a riot. The conflict between Apple supporters and Windows fans has raged on college campuses, social networks and Internet message boards. It's a discussion that invites flame wars. Put on your fireproof britches, we're going to wade right into it.
Before we throw caution to the wind, we need to establish some definitions. In this article, we're comparing Applecomputers running Mac OS X -- no hackintoshes to be found here -- and computers running the Windows operating system. While the term PC stands for personal computer and could apply to Macs, Windows machines and computers running other operating systems alike, we're using it in the common vernacular as shorthand for a Windows machine.
Given the passion often displayed by owners of both brands, you may be surprised to learn what a small share of the global computer market Apple actually controls. While the sales of iPhones, iPods and iPads provide a strong boost to Apple's overall earnings, Macs account for less than 5 percent of computers worldwide [source: Cyran and Gu]. However, the Mac boasts an impressive growth rate: Shipments increased 27.7 percent in the first quarter of 2011 over the same period in 2010, even as overall computer shipments dropped 1.2 percent [source: Elmer-DeWitt].
So, which is better -- Mac or PC? Click through our list of 10 differences between Macs and PCs and decide for yourself.
If you grew up in the 1980s, the concept of design might seem like a superficial and unimportant aspect of a computer. But design is a big differentiator between Macs and PCs. For the better part of three decades, former Apple CEO Steve Jobs focused on the outward appearance of his company's products with an enthusiasm unmatched by his competitors. The unique designs that resulted from this obsession have given Mac products the "hip" image that they enjoy today.
This unconventional focus on design began with the very first Macintosh, introduced in 1984. Like many of the computers in Apple's current line, its CPU and monitor were housed in a single unit, reducing the number of cables necessary for operation and creating a sleeker profile. Perhaps Jobs's and Apple designer Jonathan Ive's most significant success was the iMac, introduced in 1998. With its translucent, candy-colored shell, this model reversed Apple's flagging fortunes and represented the start of its rise to present-day popularity. Today, some PC manufacturers are attempting to create more design-oriented models, but none have achieved the popular acclaim commanded by Mac products.
On the flip side, PCs don't come from a single manufacturer. There are hundreds of different designs of PCs on the market, ranging from the utilitarian design of most business PCs to the space-age aesthetics of Alienware's gaming PC line of computers. You might find some designs more compelling than Apple's approach, but there's no single vision guiding aesthetic choices when it comes to the design of the PC. That's not necessarily a bad thing -- if you don't like one design, you can look to a different manufacturer to consider other options. If you don't like Apple's design, you're out of luck if you absolutely have to own a Mac.

MAC ATTACK

A study conducted by market research firm NPD found that 79 percent of all computers bought at U.S. retail stores in October 2010 were Windows PCs. However, of those that sold for $1,000 or more, 88 percent were Macs [source:McCracken].  
One of the most frequently cited differences between Macs and PCs is price. Few Mac products sell for less than $1,000, while there are dozens of PC models that fall within that price range. However, this doesn't necessarily mean that Macs are more expensive than PCs with similar specifications. Rather, in general, Apple has chosen to build its Mac line around higher-end computers with better -- and more costly -- components.
The problem with comparing prices between Macs and PCs is that the computers are rarely comparable. Even if you did find two computers with the same processor speed, RAM, hard drive capacity, graphics, memory, number of USB ports, and so on, each of them would be preinstalled with vastly different software packages. The user may have to purchase additional software for whatever computer he or she chooses, like a virus program for a PC or Microsoft Office for a Mac. The bottom line is this: The relative value of a Mac or PC really depends on the consumer's needs.
If you just need a computer to perform basic functions like Web surfing or word processing, it might be hard to justify buying a Mac. There are plenty of PC choices out there that are less expensive. And this is where Linux fans can chime in -- even someone unfamiliar with the Linux operating system can buy a cheap computer, install a simple Linux distribution and access basic computer functions.
The technical specifications offered by Macs and PCs can be very similar or very different, depending on which brand and line you're comparing. While they both have similar internal parts (processors, RAMhard drives, video cards), the speed and capacity of these components vary. Macs will generally outperform low-end PCs, because the Apple product lines typically boast more expensive and better-quality parts. Comparing Macs with higher-end PCs is a little more difficult. Generally, though, Macs have faster processors than their Windows counterparts but tend to skimp slightly when it comes to RAM, hard disk space and USB ports.
The kinds of connections and optical drives found on Macs and PCs also differ in certain ways. Macs offer a pretty standard selection of such features, including a SuperDrive (reads and writes CDs and DVDs), audio in and audio out, USB, FireWire (data transfer), Thunderbolt (video output), Ethernet, and a magnetized power port. PCs offer comparable features, plus a few more, like Blu-ray players, TV tuners, touch screens andHDMI ports.

TAKE TWO TABLETS AND CALL ME IN THE MORNING

Take a look at Mac OS X Lion for Macintosh computers and iOS, Apple's operating system for mobile devices, and you'll notice some similarities. But Windows 8 will be Microsoft's attempt to create a unified operating system for tablets and personal computers... Soon, customer choice will include not only desktops, laptops and netbooks -- tablets could become the next PC form factor.    
Perhaps the most obvious difference between a Mac and a PC is the number of configurations available for each brand. Currently, Apple offers just five computer lines: the MacBook Air, the MacBook Pro, the Mac mini, the iMac and the Mac Pro. Even if each configuration of these models is counted individually, as of this writing Apple only offers a total of 18 unique computers. This limited selection is not a sign of weakness, but a part of the company's "less is more" approach to marketing.
PCs, on the other hand, come in a wide variety of shapes and sizes. Consumer Reports reviews 11 distinct brands of Windows-based computers, including Acer, Asus, Compaq, Dell, eMachines, Gateway, HP, Lenovo, Samsung, Sony and Toshiba, each offering numerous configurations of desktop and laptop models. Many consumers see this large selection as a benefit because they're more likely to find a computer that meets their exact needs.
When it comes to third-party retail stores, Apple is more selective than the PC manufacturers about where it will sell its products. The California company's flagship retail outlet is the Apple Store, which first opened its doors in 2001 at the Tysons Corner Mall in McLean, Va. Since then, Apple has opened more than 300 additional stores in 43 states and 11 countries [source: [source: Apple]. Because these outlets are generally built only in large population centers, Apple has entered into several on-again off-again agreements with electronics chains like Best Buy, CompUSA, Computer City, Fry's Electronics, Micro Center, Office Max and Sears to reach a broader customer base. Still, Macs aren't available at many of the stores that sell PCs -- namely the world's largest retailer, Walmart. Of course, you can order Macs and Windows machines from stores on the Internet, as well.
Microsoft has a very different strategy. The company doesn't make hardware -- it licenses its Windows operating system to other companies. Most of those companies push their products into as many stores as they can. So while you might not see an Apple computer in your local computer shop, you'll see dozens of Windows PCs.

The operating system has been a long-standing difference between Mac and PC; currently, Mac computers are preinstalled with OS X Lion, while PCs come with Microsoft Windows 7. Between 2007 and 2009, when Windows Vistawas Microsoft's operating system, OS X was widely regarded as the better of the two software packages. Vista was sluggish, prone to crashing and plagued by pop-up dialogue boxes. However, Microsoft has made significant improvements in the stability and performance of Windows 7, making the current choice more a matter of personal preference in terms of functionality and layout.
A significant development in this debate occurred in 2006, when Apple announced the release of its Boot Camp software, which allows users to install Windows on their Intel-based Macs. Today, there are many programs that facilitate the installation of Windows on a Mac, including Parallels Desktop, VMware Fusion and VirtualBox. In contrast, you aren't supposed to install Mac OS X on any Windows PC. Getting Mac OS X to work on a non-Apple computer is tricky -- we call such machines hackintoshes. They tend to be unstable, and selling them is bound to get you into trouble with Apple.
Apple has worked very hard to craft a fun and hip image for its line of Mac computers, while simultaneously portraying PCs as dull and nerdy. This strategy played out most famously in Apple's recent advertising campaign featuring "Mac," played by the younger, hoodie-wearing Justin Long and "PC," played by the older, bespectacled John Hodgman. But is there actually any truth to these stereotypes?
In April 2011, the Internet was abuzz with the results of a survey on this very topic, conducted by Hunch, a Web site that makes recommendations based on user preferences. It asked users to identify themselves as a Mac or PC person, and then questioned them about a number of self-identifying factors. The results were comically stereotypical. Among the findings were that Mac users were more likely to be liberal, eat hummus and read The New York Times. PC users, on the other hand, were more conservative, had a better grasp on mathematical concepts, and, unlike their Mac counterparts, would rather ride a Harley than a Vespa [source: [source: Hunch]. While these results are certainly interesting, they can't be taken too seriously -- Hunch made these conclusions based on an admittedly unscientific survey.
One thing that both Mac and Windows PC fans have in common is passion for the brands themselves. Get a diverse group of computer users together and introduce the subject of Macs versus PCs and watch the sparks fly! Mac users will bring up concepts like security, usability and design. PC owners will counter with price, software compatibility and choice. It can get really ugly really fast (but it's fun to watch).

One of the most important reasons Mac hasn't captured a larger share of the computer market is the lack of software written for its operating system. This insufficiency is most obvious in business computing, where most applications were standardized on Windows PCs years ago. Even if a business did determine that Mac offered a better product, it would take a tremendous amount of time and money to make the switch. Mac has made some inroads by collaborating with Microsoft on the popular Office Suite, but the shortage of specialized business software remains a concern for many companies.
It's not just work that is hindered by Mac's limited software selection -- it's also play. Most computer gamers gravitate toward the PC, thanks to the wide selection of recreational software offered for Windows systems. Mac has slowly expanded its offerings to include popular games like Civilization, Duke Nukem, Starcraft and World of Warcraft, but it still lags behind the PC in selection. A search on the online gaming platform Steam reveals about 180 games for Mac and more than 1,300 for PC [source: Steam].
Another big difference between Mac and PC is the level of security you can expect from viruses and other unwanted intrusions. Because the vast majority of the world's computers run Microsoft Windows, most attacks focus on PCs. Malware like Trojans, which trick users into installing them by pretending to be something desirable, like antivirus programs, and botnets, which quietly enlist computers into an army ofzombie machines designed to distribute spam or advertise fraud, are now common threats to PCs, but rarely harm Macs.
This doesn't mean that Mac users should completely ignore security. Recently, a Trojan known variously as Mac Protector, Mac Defender and MacGuard has been showing up on Apple machines. A window claiming to be the "Apple Security Center" pops up and indicates that it has found viruses on the computer. It then prompts the user to download Mac Protector, a cleverly disguised piece of software intended to steal your credit card information. As Macs become more popular and begin to claim a larger market share, these threats will inevitably increase. However, as one observer puts it, "a Mac owner who runs no security software is vastly less likely to be the victim of a successful attack than a Windows user who's protected up to his eyeballs"
Customer Satisfaction
Probably the most striking difference between Macs and PCs is in customer satisfaction. In the most recent surveys conducted by both PCWorld and PCMag, readers chose Apple computers over every single brand of PC available. Macs scored high marks in categories like reliability, service experience and even phone hold time. The only category in which Mac scored low was percentage of laptops needing repairs. It didn't seem to matter, though, as Mac also topped the category, "likelihood of recommending."
These high rankings are probably due in part to the way that Apple provides service. At a time when many PC manufacturers have shipped their service centers overseas, Mac users can get face-to-face assistance from a technician at the Genius Bar help desk located in any Apple Store.
It also helps that Apple has a centralized identity. If you have a problem with a Mac computer, whether it's the hardware or the operating system, you can go to the Genius Bar. But what happens if your PC is on the fritz? You might have to speak to two or more companies just to identify the underlying problem.
In the end, the choice of PC or Mac depends upon you more than anything else. Declaring that one is better than the other is like saying oranges are better than -- well, you know.

5 Everyday Things You Can Do to Keep Your Computer Healthy

Hygiene is important! Most of us have it under control for ourselves, but for a lot of our technology, it's a bit messier under the hood. Just like keeping your house clean or brushing your teeth addresses problems before they can start, a little prevention of common computer problems can save you hours and dollars down the road. And, as with any intimidating situation, even a little foreknowledge and preparation can be vastly empowering.
For complicated machines like our cars,computers and gadgets, it's easy to be overwhelmed. It's not that we're being walled off from that knowledge at all -- they're our machines, we should know how to work with them, and the information is readily available -- but it can sometimes feel like an episode of "House" in there: Change one thing over here, and suddenly it's going haywire in a completely different area. So we tend to just shrug and keep going, even though our tech could work better than it does.
If you think about how much of your daily life is spent working with, or deriving benefit from, your desktop orlaptop computer, that can be scary all on its own. It's a catch-22, in a way: We don't want to mess with our computers because we don't want to cause problems, so we treat the back end like a room we never go into ... which causes problems! Not everybody can be a DIY mastermind -- I'm certainly not one -- but with a few simple routines and tips, you can keep your computer's works as clean as a whistle without ever feeling like you've crossed the line or permanently ruined everything.
Most of us understand that computers need to stay cool, theoretically. But the convenience of a laptop and the reliability of a desktop make it easy to forget to keep this idea in play. The desktop lives in its own special place, wherever that may be, and we go to it when we need to do something. It's easy to forget all the environmental issues that could be going on in there.
First, you want to ensure that there's plenty of airflow around all sides of the computer, especially the back on a desktop and often the bottom and sides for a laptop. While it's easy to declutter your desk or work area, it's also important to remember this tip if your tower lives under your desk, or in a special cubby, because the hot air in those situations can build up and recycle itself, getting hotter and hotter inside the space. Keep the cabinet doors open, for example, or take off the cubby's back panel to ensure proper flow.
You might have heard, or intuited, that taking the case off your computer is a good idea in cases of overheating. That's actually incorrect, because the case around your computer's guts is there to protect it from dirt and fuzz, which is one of the most common causes of overheating. Dust, pet hair, and all the rest of the daily grime are the biggest cause of PC temperature issues, because they interfere with the fans meant to cool your equipment down. If you've ever cracked a case open and looked at the fans inside, you won't have forgotten that grungy sight. Case closed, please.
Which leads us to the most helpful way to be proactive here: by cleaning and/or replacing the fans that keep everything working. While expensive solutions like water-cooling kits and phase-change units (imagine a high-end deep freeze for your machine) aren't necessary for the average computer, you can easily install extra fans for components inside the machine that are getting too excited for their own good. Chances are, whatever fans came pre-installed are not top of the line anyway, so if you're running into repeat issues on this front you might look into extra, or better, fans.
They're easy to spot: There's going to be one on the CPU, one inside the power supply, and probably another one on the front or side of the case itself. Just turn the computer off, take it outside, and clear those fans out with some canned air before deciding whether to upgrade. It's going to be nasty, but it's also pretty satisfying once you've gotten things clean again.
Electrical outlets seem like a pretty simple proposition: You plug your stuff into them, and they work. (Even when you travel to other countries, with a little help.) But what we're not seeing our computers deal with is the little blips and interruptions coming out over the grid, all the time. Your average computer sold in the U.S. is meant to work off 120-volt AC power, oscillating at 60 Hz, but often that's not exactly what it's getting. Even if you never see the effect of those slip-ups and surges, the spikes and sags and tiny little brown-outs, the millisecond bumps in oscillation, your computer is feeling them.
The Institute for Electrical and Electronic Engineers tells us the typical AC outlet in North America gets a surge more than 600v (that's five times what your computer wants, and twice as much as what's dangerous to the equipment) about 13 times daily, and one more than 3000v (10 times the recommended maximum) about three times a week.
In fact, it's estimated that 47 percent of computer problems can be traced back, eventually, to this so-called "dirty power" [source: Superuser] An Uninterruptible Power Source, or UPS, is designed to keep the power coming steadily and constantly, even in the face of a total power outage, by using a battery and modulation system to filter the electric power. Essentially, it means your computer is always running off the UPS's battery, which the UPS is always recharging. That means there's no switchover time, like you'd imagine with a generator or other backup.
If you're convinced, just remember to keep your UPS grounded, replace the battery every three years -- you can get the replacements when you buy the unit, for convenience's sake -- and don't plug your printer or any other external devices into it. And, as is often recommended, it's probably a good idea to let the battery completely die at least a few times a year and recharge it from baseline.
There are three utilities you should get to know, even if that's as far as you want to go with the man behind the curtain:defragmentation, disk checks and an antivirus program. Most of the free antivirus software we'll be looking at comes bundled with analogues of the other two -- as well as a version of the very helpful task scheduler we'll talk about later -- so we'll focus there, but here are some definitions for the layman. What these terms refer to is the wilderness of digital energy inside your computer's memory drives, which are naturally a lot less tidy than you might expect.
Defrag. Whenever you change, move, copy or delete a file, your computer usually does the minimum work necessary to give you the desired result. That means bits and pieces of files are left around in the empty spaces, not useful but also not gone, meaning your "free" space isn't technically free. A defrag utility will go hunting through the wilds of your free space, collecting those random shadows and getting rid of them for good. This frees up space your computer didn't even know it had, as well as speeding up the machine by pushing all the data that still matters into a more compact area of the disk so that your CPU doesn't have to hunt around for the various pieces of stuff you still care about, mixed in with the trash.
Immensely satisfying, whether you -- like me -- simply prefer things clean and elegant, are paranoid about leftover data, or just want to make everyday tasks easier and faster for your machine. (You will have to clear out at least 15 percent of the space on the drive before it can work, so if your problem is an over-full memory, you'll need to delete some stuff before it can give you the extra space.)
Chkdsk. Hand-in-hand with the defrag utility is this holdover from the early DOS days. It's a brute-force way of checking disks for errors, and it's the kind of thing you don't think about until about five minutes too late. If you don't use a sector of the disk -- or it's been left to the shadows, as above -- you might never know it's troubled until the computer tries to save something there. That's why Defrag usually includes or requires Chkdsk before it starts sorting through your leftovers. Just remember that a disk check requires exclusive access to the volume (For example, "C:" drive) before it starts, so you might have to go play on your phone or tablet for a while.
Antivirus. Of course, we all get into trouble. Even if we're not doing anything particularly shady or questionable, viruses get in: That's what they're made for. You need a solid watchdog program, but you'll also want something you can use for analysis when you're feeling suspicious or nervous about the way something's acting. We judge antivirus software by three things: how much malware and viruses a program can detect, how good it is at getting them out of there without a trace or secondary issues, and how much memory and power they take up.
There are some great free programs on the market that excel in all three areas. The most popular ones are self-updating, meaning they're always learning new red-flags and ways of locating and immunizing against threats, they include utilities like those listed above so you can clean house all from one location (very satisfying), and they include task schedulers that can make all of these things happen while you're asleep!

Hygiene is important! Most of us have it under control for ourselves, but for a lot of our technology, it's a bit messier under the hood. Just like keeping your house clean or brushing your teeth addresses problems before they can start, a little prevention of common computer problems can save you hours and dollars down the road. And, as with any intimidating situation, even a little foreknowledge and preparation can be vastly empowering.
For complicated machines like our cars,computers and gadgets, it's easy to be overwhelmed. It's not that we're being walled off from that knowledge at all -- they're our machines, we should know how to work with them, and the information is readily available -- but it can sometimes feel like an episode of "House" in there: Change one thing over here, and suddenly it's going haywire in a completely different area. So we tend to just shrug and keep going, even though our tech could work better than it does.
If you think about how much of your daily life is spent working with, or deriving benefit from, your desktop orlaptop computer, that can be scary all on its own. It's a catch-22, in a way: We don't want to mess with our computers because we don't want to cause problems, so we treat the back end like a room we never go into ... which causes problems! Not everybody can be a DIY mastermind -- I'm certainly not one -- but with a few simple routines and tips, you can keep your computer's works as clean as a whistle without ever feeling like you've crossed the line or permanently ruined everything.
In this article, we'll look at the best ways to keep your machine working smoothly and quickly without breaking your budget -- or causing more problems as you learn.

Most of us understand that computers need to stay cool, theoretically. But the convenience of a laptop and the reliability of a desktop make it easy to forget to keep this idea in play. The desktop lives in its own special place, wherever that may be, and we go to it when we need to do something. It's easy to forget all the environmental issues that could be going on in there.
First, you want to ensure that there's plenty of airflow around all sides of the computer, especially the back on a desktop and often the bottom and sides for a laptop. While it's easy to declutter your desk or work area, it's also important to remember this tip if your tower lives under your desk, or in a special cubby, because the hot air in those situations can build up and recycle itself, getting hotter and hotter inside the space. Keep the cabinet doors open, for example, or take off the cubby's back panel to ensure proper flow.
You might have heard, or intuited, that taking the case off your computer is a good idea in cases of overheating. That's actually incorrect, because the case around your computer's guts is there to protect it from dirt and fuzz, which is one of the most common causes of overheating. Dust, pet hair, and all the rest of the daily grime are the biggest cause of PC temperature issues, because they interfere with the fans meant to cool your equipment down. If you've ever cracked a case open and looked at the fans inside, you won't have forgotten that grungy sight. Case closed, please.
Which leads us to the most helpful way to be proactive here: by cleaning and/or replacing the fans that keep everything working. While expensive solutions like water-cooling kits and phase-change units (imagine a high-end deep freeze for your machine) aren't necessary for the average computer, you can easily install extra fans for components inside the machine that are getting too excited for their own good. Chances are, whatever fans came pre-installed are not top of the line anyway, so if you're running into repeat issues on this front you might look into extra, or better, fans.
They're easy to spot: There's going to be one on the CPU, one inside the power supply, and probably another one on the front or side of the case itself. Just turn the computer off, take it outside, and clear those fans out with some canned air before deciding whether to upgrade. It's going to be nasty, but it's also pretty satisfying once you've gotten things clean again.
Electrical outlets seem like a pretty simple proposition: You plug your stuff into them, and they work. (Even when you travel to other countries, with a little help.) But what we're not seeing our computers deal with is the little blips and interruptions coming out over the grid, all the time. Your average computer sold in the U.S. is meant to work off 120-volt AC power, oscillating at 60 Hz, but often that's not exactly what it's getting. Even if you never see the effect of those slip-ups and surges, the spikes and sags and tiny little brown-outs, the millisecond bumps in oscillation, your computer is feeling them.
The Institute for Electrical and Electronic Engineers tells us the typical AC outlet in North America gets a surge more than 600v (that's five times what your computer wants, and twice as much as what's dangerous to the equipment) about 13 times daily, and one more than 3000v (10 times the recommended maximum) about three times a week.
In fact, it's estimated that 47 percent of computer problems can be traced back, eventually, to this so-called "dirty power" [source: Superuser] An Uninterruptible Power Source, or UPS, is designed to keep the power coming steadily and constantly, even in the face of a total power outage, by using a battery and modulation system to filter the electric power. Essentially, it means your computer is always running off the UPS's battery, which the UPS is always recharging. That means there's no switchover time, like you'd imagine with a generator or other backup.
If you're convinced, just remember to keep your UPS grounded, replace the battery every three years -- you can get the replacements when you buy the unit, for convenience's sake -- and don't plug your printer or any other external devices into it. And, as is often recommended, it's probably a good idea to let the battery completely die at least a few times a year and recharge it from baseline.

There are three utilities you should get to know, even if that's as far as you want to go with the man behind the curtain:defragmentation, disk checks and an antivirus program. Most of the free antivirus software we'll be looking at comes bundled with analogues of the other two -- as well as a version of the very helpful task scheduler we'll talk about later -- so we'll focus there, but here are some definitions for the layman. What these terms refer to is the wilderness of digital energy inside your computer's memory drives, which are naturally a lot less tidy than you might expect.
Defrag. Whenever you change, move, copy or delete a file, your computer usually does the minimum work necessary to give you the desired result. That means bits and pieces of files are left around in the empty spaces, not useful but also not gone, meaning your "free" space isn't technically free. A defrag utility will go hunting through the wilds of your free space, collecting those random shadows and getting rid of them for good. This frees up space your computer didn't even know it had, as well as speeding up the machine by pushing all the data that still matters into a more compact area of the disk so that your CPU doesn't have to hunt around for the various pieces of stuff you still care about, mixed in with the trash.
Immensely satisfying, whether you -- like me -- simply prefer things clean and elegant, are paranoid about leftover data, or just want to make everyday tasks easier and faster for your machine. (You will have to clear out at least 15 percent of the space on the drive before it can work, so if your problem is an over-full memory, you'll need to delete some stuff before it can give you the extra space.)
Chkdsk. Hand-in-hand with the defrag utility is this holdover from the early DOS days. It's a brute-force way of checking disks for errors, and it's the kind of thing you don't think about until about five minutes too late. If you don't use a sector of the disk -- or it's been left to the shadows, as above -- you might never know it's troubled until the computer tries to save something there. That's why Defrag usually includes or requires Chkdsk before it starts sorting through your leftovers. Just remember that a disk check requires exclusive access to the volume (For example, "C:" drive) before it starts, so you might have to go play on your phone or tablet for a while.
Antivirus. Of course, we all get into trouble. Even if we're not doing anything particularly shady or questionable, viruses get in: That's what they're made for. You need a solid watchdog program, but you'll also want something you can use for analysis when you're feeling suspicious or nervous about the way something's acting. We judge antivirus software by three things: how much malware and viruses a program can detect, how good it is at getting them out of there without a trace or secondary issues, and how much memory and power they take up.
There are some great free programs on the market that excel in all three areas. The most popular ones are self-updating, meaning they're always learning new red-flags and ways of locating and immunizing against threats, they include utilities like those listed above so you can clean house all from one location (very satisfying), and they include task schedulers that can make all of these things happen while you're asleep!
One easy way to remember your backup system -- which is to say, remember to actually use it -- is to remember that World Backup Day comes just before April Fool's Day, and that's no mistake. A lot of us are moving into the cloud these days, keeping our information and media online and accessing or streaming it at-will.
But if your needs are different -- if you have lots of data or media you want to keep to yourself, protect, or otherwise maintain access to regardless of equipment failure -- you really should listen to your IT guy andback that stuff up. (You also should have a backup system for all your important files you keep in the cloud.) While external hard drives have become easy to come by, there are plenty of services that provide storage, free or for a price, that can sync your data easily and seamlessly, so that you never have to worry about another crash or disaster.
Questions you should use to guide this search for the perfect match for your needs: How does the syncing work, and how often does it happen? Can you share the data with other people or computers? Can you access your data over the Web? Does it cover more than one computer? How about more than one type? Can you get a plan for both Macs and PCs at once? And how much is price a factor? You're going to be using gadgets other than your desktop or laptop more and more, if you don't already: You may need phone access or tablet access in the future that you don't need now, and the hassle of moving large storehouses of information can quickly be a real drag.
While many of the larger companies cater to a certain kind of paranoia -- as a sales tactic, of course -- these questions still matter, because you need to find the perfect backup service for you. The information that is most important to you will be just as important, at the end of the day, regardless of what you decide here. But in terms of your computer's health, and your own peace of mind, this is a comparison-shopping situation that could end up meaning a great deal down the road. Think about it this way: The more time you spend making the best choice now, the more likely you are to actually use the service, which is the end goal.
And then, of course, comes the lecture. You've been through all the nooks and crannies, you've blown out our fans and backed up our hard drives, you've cleaned up your registries and defragged, and even set timers for all this stuff in case it turns out to be less fun -- or memorable -- than I've made it seem. (Imagine your computer's upkeep utilities as a digital Mary Poppins, cleaning up the whole place with an electronic snap of her fingers!)
But none of that is going to help you if you walk right into the same old digital traps. Hygiene and preventive care are fine for mistakes, but that's only assuming you don't go looking for trouble. Music downloads, the Petri dish of peer-to-peer sharing, malware sites you didn't even mean to open, e-mail forwards from your kindly aunt, or well-disguised Trojan horse e-mails: They all happen to the best of us, whether or not we know what we're doing.
That's why you still need to take these threats seriously. There is no installable antivirus program available to protect you from yourself. That means being smart about torrents, downloads, adult sites and file sharing programs, but also taking advantage of protections that are already built into your computer and other programs.
Your browser has safety settings that have nothing to do with content and everything to do with suspicious code -- in fact, some more progressive browsers will even throw up a gateway before you reach some sites, just to make sure it's a trustworthy place to be. If you download a song or movie file and it tells you to download a new plug-in or codec, go get those things yourself instead of simply clicking "yes." Stay away from warez, cracks and serial number generators or downloaders -- all of those are potential danger zones. And most of all, make sure that anybody using your computer is either aware of the dangers, or that you've put measures in place to keep it safe. A lot of us can be confident about our savvy on these topics, but that doesn't extend to other folks using your machine.
In the end, knowledge really is power. But just because you shouldn't be afraid of your computer doesn't mean you shouldn't be wary of jerks, pet hair, or the million other things that could slow down your fun.