Cheap Computers Guide

2007-07-27T16:22:00.000-07:00

This is your complete guide to evaluate on cheap computers, buy or build your own desktop pc and all the information related to desktop pc, laptop and accessories.

Notebook or Desktop Computer - Which Should you choose?
Portable computers cost more, so unless you really have the need for one, you get a lot more computer for your money with a regular desktop PC. The main thing is portability. If you need a portable computer, get a laptop. ("Laptop," "portable," and "notebook" all refer to the same thing, by the way). Otherwise, a desktop computer is a better buy, and better ergonomically.

If you are after Desktop Computer or specifically cheap computers you can:

Building your own computers. The first step in building cheap computers is to determine the route you want to use to build systems. You basically have three choices when considering building cheap computers:

Finding cheap computer deals to upgrade your computer. If you currently have a computer and you want it to be able to perform more functions, you don’t have to get rid of it and spend a lot of money on a new system. You can simply purchase components to upgrade your computer. If you seriously consider upgrading your computer, now is a perfect time to do so. As with computers, prices of computer components are at an all-time low.

Save your money by get refurbished computers at up to 80% savings and there is no different in the quality or warranty.

Step by step guide to build your own computer:

Build computer or buy - Learn to build a computer -- build or buy decision process
Build computer components - Learn to build a computer -- component selection
Build computer CPU - Learn to build a computer -- CPU
Build computer graphic cards - Learn to build a computer -- select a graphics card
Build computer memory - Learn to build a computer -- memory selection and installation
Build computer sound card - Learn to build a computer -- sound card selection
Build cheap computers- Just a decade ago, the only people who put computers together were those individuals who possessed an extensive technical background. Advancements in technology have eliminated some of the...
Build Your Own Computer - If I cand do it so can you Written by: George W. Cannata Im eighty-one years old and I bought my first computer six years ago. When I bought it I hardly knew how to turn it...

Tips For Buying An Ultraportable Laptop
Computer technology is changing rapidly, particularly for portable laptops. With everything going on with technology, it’s easy to get lost in a sea of features and options, but help is on the way. The first thing you need to think of when choosing a laptop is what you’ll be using it for. If you plan to use your laptop mainly for travel, you’re probably looking for an ultraportable laptop. This is the smallest type of laptop. They’re generally not as powerful as the larger models, but the travel easy and are very convenient. However, before you buy, there are a few things you should consider.

Fully Loaded Laptops
Buying a laptop is a commitment! Once you buy it, you can’t decide to change or upgrade any part of the system, as doing so is impractical in terms of cost and time. So plan before buying a laptop, and make sure it’s a fully loaded model that is up to date.

Buying A Refurbished Laptop Computer
When considering buying a used or even a new laptop, the first thing you need to do is to determine your computing needs.
Check out the Minimum Systems Requirements needed to do all of the your applications. They will not come with the laptop, as refurbished laptops often only include the Operating System (OS). If they don't include an installed OS, then be prepared to install it yourself. This is not for those that don't know what they are doing, so research what is involved before buying one without an OS.

Buying A Refurbished Laptop Computer

2007-07-25T00:55:00.001-07:00

When considering buying a used or even a new laptop, the first thing you need to do is to determine your computing needs.

* word processing
* e-mail
* browsing web pages
* moving the laptop from home to work (weight)
* gaming
* on-line shopping
* a database application
* personal finance
* is battery power important

Check out the Minimum Systems Requirements needed to do all of the your applications. They will not come with the laptop, as refurbished laptops often only include the Operating System (OS). If they don't include an installed OS, then be prepared to install it yourself. This is not for those that don't know what they are doing, so research what is involved before buying one without an OS.

Once you understand what you really need, you need to determine your budget.

Most old laptops do not have working batteries. If you need a battery, shop around to figure out how much they cost. You should know that on older laptops, batteries don't last more than an hour or two, so purchasing a new battery for the purpose of longer battery life may not be worth the expense. And by all means, stick with a name brand… IBM, Dell, Toshiba, Compaq-HP.

If you are new to computers and you want to browse the World Wide Web, you will need to obtain the services of an ISP (Internet Service Provider). There are basically two types of Internet access options: broadband (cable modem, DSL, satellite) and lowband (dial-up). Broadband is the preferred type since download speeds can range from 128kbs to 6000kbs. The faster the better, of course. But, if your budget is tight, dial-up works just fine for typical browsing and e-mail usage.

Your choice of ISP's will be dependent upon two things: budget and location. If the budget allows and you don't mind paying upwards of $35-50+ per month, you can purchase a broadband connection. However, even if money were no object, your physical location will determine what types of services are available to you. Broadband is not available everywhere (with the exception of satellite). If you have a telephone line, you can always choose dial-up. AOL's bread and butter is dial-up users. Do your research to determine what is available in your area and compare costs.

And for you gamers out there, you definitely need a reliable broadband connection. Gaming over a lowband connection can be a frustrating experience and sometimes even impossible. You will need to check out the minimum systems requirement for the games you are interested in using to make sure the CPU speed and the RAM and graphic chip requirements will support the games you wish to play.

Once you have figured out your budget and your needs and the requirements of your laptop it is time to search for the laptop of your desires.

Some people choose to search at www.ebay.com. If you do be sure to check out the seller to be sure you will have a smooth transaction.

Many people don't want the hassle of bidding, so use your favorite search engine: Google or Yahoo or MSN for the terms "used laptops" or "refurbished laptop".

An important thing to keep in mind is how will the vendor treat you should there be a problem. If you don't like their attitude or they don't pick up the phone shop elsewhere. Price is important, but if you have a problem and spent the least amount of money possible the vendor may not have any resources available to help you after you have purchased and spent your money.

If all the above seems like too much of a hassle, then buy a new computer. It will cost around $700 + but will come with a new battery and a one year warranty, although some new ones seem to have only 90 day warranties. It will also have the latest Windows XP system and an 800 number to call the vendor, should their be a problem. I'd call the 800# first before buying to get an idea what kind of support they will provide.

Fully Loaded Laptops

2007-07-25T00:54:00.000-07:00

Buying a laptop is a commitment! Once you buy it, you can’t decide to change or upgrade any part of the system, as doing so is impractical in terms of cost and time. So plan before buying a laptop, and make sure it’s a fully loaded model that is up to date.

One of the important features of a laptop is its memory. While most laptops come with a 128 MB memory, it’s wise to invest in more memory such as a system memory (RAM) of 256 MB or even better, 512 MB, for the easier running of programs under Windows ME, Windows XP, and others. After all, the more memory the merrier!

Another main feature of a laptop is its port. A port is a slot through which external material such as microphones and cameras are connected. Laptops come with a serial port, infrared, parallel, and a Universal Serial Bus (USB) ports. Most external equipment correspond with different ports, which is why there are several types of ports in a laptop. However, it is best to opt for at least two USBs, as this is fast becoming the most popular of ports.

CD-ROM drives are not a standard feature of laptops, but it is best to have one installed, as most software comes in CDs these days. Even better would be to install a DVD-ROM drive, which can be used to read CD-ROMs too. A DVD-RW drive is capable of writing and rewriting CDs and DVDs. Also, when on a lengthy trip, having a DVD drive means you can check out your favourite DVD!

Laptops come with internal modems or external PC card-based modems for ready Internet access. The majority of new laptops even come with modules for wireless networking, like Apple’s laptops which are Wi-Fi compatible.

Input devices in a laptop range from the Touchpad to the Pointing Stick. A Touchpad is located beneath the spacebar on the laptop keyboard. It is touch sensitive; use your fingers on the Touchpad to move the cursor across the screen. The Pointing Stick is a rubber nub set in the laptop keyboard, and can be used to navigate the cursor by applying pressure with your index finger, similar to using a joystick. You can also plug in a standard mouse should you feel the need to do so.

There are a staggering number of laptop brands in the market today, so choosing that perfect laptop suited to your needs is no problem at all!

The Toshiba Portege R100 is a laptop specially designed for the mobile professional. With a striking appearance, bright screen, and integrated webcam, the Sony TR3A Vaio Ultraportable Laptop is the perfect travel partner. The Sony Vaio X505 is super thin, and uses carbon-fiber for its chassis, making it shock-free and robust. The Panasonic Toughbook Y2 Ultraportable incorporates a number of computer features in a portable and durable design, and pays special attention to battery life. For an excellent Multimedia feature set and attractive design, the Dell Inspiron 700M Notebook fits the bill.

Tips For Buying An Ultraportable Laptop

2007-07-25T00:53:00.001-07:00

Computer technology is changing rapidly, particularly for portable laptops. With everything going on with technology, it’s easy to get lost in a sea of features and options, but help is on the way. The first thing you need to think of when choosing a laptop is what you’ll be using it for. If you plan to use your laptop mainly for travel, you’re probably looking for an ultraportable laptop. This is the smallest type of laptop. They’re generally not as powerful as the larger models, but the travel easy and are very convenient. However, before you buy, there are a few things you should consider.

While a smaller size is much easier to travel with, it also comes with some disadvantages. In general, the smaller the laptop, the easier it’s going to break if it is dropped or smashed into something. However, this is less of a problem if you get an extended warranty. I have a larger laptop, but I carry it around a lot. I’ve had my laptop less than a year and can tell you that the extended warranty has been well worth the money. I also recommend that you see and feel a laptop before you buy it to determine how sturdy it is, especially if you’re prone to dropping, banging, or stepping on things. If you can’t visit a store and see the model, try to find a friend with a similar machine, or at the least, check online reviews for comments.

Another factor that can be a challenge with decreasing size is the usability of the keyboard and touchpad (or other mouse alternatives). Key can be small and very smushed on some ultracompacts, and it is best to find one that fits your hand size and other preferences. If you’re going to be using it home as well as on the road, consider getting an external keyboard. They’re much easier to type on than itty bitty keyboards, but you always have the option of not toting them along when you don’t have the space. There are also portable wireless mice made just for people who like to travel, but don’t like touchpads.

Another consideration when buying an ultracompact laptop is attaching accessories like printers and scanners. Many of these computers are so small they cannot fit the normal port to attach this equipment and will require an adapter. While not hard to use, they are one more thing to carry and remember, so you should be sure to check out what kind of adapters may be needed before making your purchase.

When choosing an ultracompact laptop, you need to realize that the weight on the product listing probably isn’t the weight you’re going to be carrying. I’ve already mentioned that you may need to bring adapters, but you also have the power cable and ac adapter (you may want to buy an extra more portable one). While many new systems have them included, some ultracompacts are made without an optical drive, so if you need one, that adds even more weight. I also already mentioned that you may want to have an external keyboard and mouse, which again will add to the carrying weight. Also, smaller computers tend to have smaller, lighter batteries, which don’t last as long, so you may need to get a heavier battery or carry an extra. As you can see, this weight tends to add up, so when you’re looking at systems, you may want to go for the slightly larger model if it will require less extra weight to be carried with it. This also means that, once you have everything packed up, small weight differences make very little difference in your total carrying weight. If you like a particular model, but it’s half a pound heavier, remember that the difference between 10 and 10.5 pounds really isn’t that big. Also, remember to get a case that can fit everything you need not just the computer.

As with all computers, there’s a lot to think about and consider when buying an ultracompact laptop. Be sure to look at all your options to make the best choice for you.

What Is Refurbished Computer

2007-07-25T00:52:00.001-07:00

Why buy 'new' computer equipment when you can get the same refurbished computer at up to 80% savings and there is no difference in the quality or warranty? Statistics show that people who have already bought a factory refurbished computer will never buy 'new' computer again! Manufacturers are so sure about there refurbished computer equipment that they offer the original warranties.

Exactly what is considered factory refurbished computer equipment?

A lot of things can be labeled factory refurbished. So frivolous are some that it's silly enough to make you laugh! Consumer laws prevent manufacturers from selling anything considered factory refurbished as new, so the second consumer gets the best deal and its just like a new computer!

For example, most major retail stores offer a 30 day money back guarantee on their computer equipment and some consumers take advantage of this. So when the new computer is returned, the manufacturer inspects the product and repackages it like new. But it can't be sold as new now so you get a great price with the original warranty, now its considered a refurbished computer. Other reasons may be the box was damaged in shipment and so it was returned, a slight defect, the defective part is replaced by the manufacturer, tested and then repackaged just like new. Maybe a minor cosmetic blemish on the casing that was corrected. Demonstration units are also considered factory refurbished computers. They are also inspected, tested and repackaged. The box was simply opened or brand new items that have been overstocked are also labeled factory refurbished.

Its hard to tell the history of each and every refurbished computer item but what ever the reason for the refurbished label you can be sure that the computer equipment has been inspected and serviced by the manufacturer then tested and repackaged to meet original product specifications, just like a new computer. And like I said before, all computer equipment merchandise is warranted by the original manufacturer unless otherwise specified.

Why buy a refurbished computer?
Well, to save MONEY! Why not get the best value while getting the exact same computer equipment? Also, you get the original manufacturers warranty and get a much, much lower price on your new computer.

Now with refurbished computer equipment you can afford that item which has been just out of your reach because it cost too much. And you will get the same performance! Actually refurbished items have a much lower defect rate than new ones. Only one in ten units that come back for repair is usually a factory refurb! That is because they are closely tested before they are sold. The only difference you may notice is a little label on the outside of the box or simply a brown box. So think hard before your purchase, are you shopping smart?

Finding Cheap Computer Deals To Upgrade Your Computer

2007-07-25T00:50:00.000-07:00

It seems that the time that it takes for computers to become obsolete is shortening more than ever. If you go out and purchase a top-of-the-line computer, it is very likely that in less than six months it will no longer be considered top-of-the-line. If you currently have a computer and you want it to be able to perform more functions, you don’t have to get rid of it and spend a lot of money on a new system. You can simply purchase components to upgrade your computer. If you seriously consider upgrading your computer, now is a perfect time to do so. As with computers, prices of computer components are at an all-time low. Depending on they type of specifications you’re after, you can spend as little as three hundred dollars to update your desktop or laptop computer.

Finding all the components you need to upgrade your own computer system is as easy as visiting findcheapcomputers.com. This website features detailed information about parts and includes a buyer’s guide to make buying your components a snap. The first task that you need to perform to upgrade your computer system is to make a list of the computer’s specifications. If you’re not sure what specs you want the system to have, you can consider what you will do most with the computer and then generate a list of specifications. People typically choose to upgrade their existing computer systems because it does not include a particular component to enable them to perform a particular task.

A processor is an important component in your computer. Whether or not you should upgrade your processor depends on the tasks you will perform with the computer and the type of processor that currently exists in your computer. If the system you are planning to upgrade does not use one of the fast processors on the market, you may want to invest in a motherboard bundle that includes a motherboard, CPU, and fan. These bundles generally cost less than if you were to buy the parts separately. Of course, you could purchase an Intel Celeron with a speed of 2.6 gigahertz or an AMD Athlon 2700+. Both of these processors are sufficient for general computer use as well as browsing the Internet and gaming.

In addition to the processor, you will probably want to upgrade your system with memory, a graphics card or video card, a monitor, and keyboard and pointing device. Finding cheap computer deals of these components should be easy since activities that require high-quality video such as gaming are very popular. The important thing to remember when shopping for these components is that you need to make sure they are compatible with your system. For example, an AGP graphics card is an excellent choice if you plan to do a significant amount of gaming because it processes graphics faster. However, your motherboard will need to have an AGP slot. If you’re not sure which components are most compatible, the website findcheapcomputers.com features information about computer components that are not only compatible with most systems, but that are also cheap.

Notebook or Desktop Computer - Which Should you choose?

2007-07-25T00:49:00.002-07:00

On TV and in the movies, we see a lot of portable computers being used in homes and offices. Does that mean that's the trend? Is that what you should get?

Portable computers cost more, so unless you really have the need for one, you get a lot more computer for your money with a regular desktop PC. The main thing is portability. If you need a portable computer, get a laptop. ("Laptop," "portable," and "notebook" all refer to the same thing, by the way). Otherwise, a desktop computer is a better buy, and better ergonomically.

The Price Difference

You might wonder why laptops cost more than desktop computers with comparable features and power. That is largely because it is more expensive to manufacture laptops and their parts. For portable computer components, factors such as compactness, the amount of heat they generate, their weight, and power consumption are more important than they are for desktops. Those factors add to their manufacturing costs.

Space Requirements

While laptops are certainly compact, a desktop computer with a flat panel monitor can take up almost as little space. While called a "desktop" computer, the computer itself is most often kept on the floor. That leaves just the monitor, keyboard and mouse on the desk, which is really very similar in footprint to a notebook computer.

A great way to further reduce the space taken up on the desktop computer is get a keyboard drawer to hold the keyboard and mouse. That way, they slide out of the way under the top of the desk when they aren't needed.

Be Mindful of Ergonomics

Ergonomics is the science of designing and arranging things so that people can interact with them more comfortably and safely. The basic ergonomic principals for computer use tell us that, 1) the keyboard should be as close to your lap level as possible (assuming you touch-type), 2) the monitor should be about arm's length in front of you, and 3) the top of the monitor should be at about your eye level. Try achieving that with a laptop computer! Two words: im-possible.

It is obvious then, that a desktop computer is much better ergonomically than a laptop is. For prolonged use, especially, you're much better off with a desktop computer.

And Don't Forget Usability

Another aspect of ergonomics is usability. Because of size constraints, laptops also are lower on the usability scale than desktop PCs are. For one thing, laptop keyboards lack the separate groupings of the different sets of keys with space between them. For another, there are fewer keys on a laptop's keyboard, so some of them have to perform double duty. On a standard keyboard, you don't have to deal with that.

Screen Resolution

Computer monitors -- the bulky ones, anyway -- can be set at different resolutions. In other words, you can change the fineness of the image on the screen. The range is typically 640x480 -- that is 640 pixel across and 480 pixels up and down -- to 800x600, 1024x768, or even higher. At 640x480, the icons and such appear quite large; at 1024x768, they are substantially smaller. The most common resolutions today for desktop computers are 800x600 and 1024x768.

Something They Don't Tell You

Laptop displays, on the other hand, have a fixed, or native, resolution. You can change the setting, but then the images and text don't look good. While people tend to think that bigger numbers are better, a higher screen resolution may not work as well for you. It may make everything too small to see comfortably.

Remember, the laptop's screen is smaller that a desktop's. While a typical desktop computer screen is 17" or so a laptop's is usually in the range of 12" to 15." That is a big difference. Make sure you can see everything clearly before choosing a high-resolution laptop.

Build Your Own Computer

2007-07-25T00:49:00.001-07:00

Building a computer doesn't require a high degree of technical skill, however it does require a little mechanical aptitude. Building may not be the proper term, assembling would be more appropriate. That's actually what you do, you assemble the right components then install an operating system which is the only phase of the project that requires any technical ability.

Building your own has several advantages, for one you can save some money. But don't get the idea that you can sell them at a profit. There's too much competition at the low end. All the major manufacturers have budget models, most of which you can buy with substantial rebates and good warrantees

You have a number of options, you can build from scratch or you can build from a barebones kit. I recommend the latter for your first attempt. You also have the choice of using all new components or using some recycled parts.

If you have a reasonably up to date PC that died there are probably a number of parts that you can re-use, and you can buy a lot of good used components from eBay and other online sources. Refurbished parts are a good option.

The first thing you have to do is determine your requirements. If you're going to just surf the Internet, do e-mail and a bit of printing, go for the cheapest you can buy. You will still have plenty of capacity for simple tasks.

Next you have to decide whether to go with a barebones kit or do a complete build. Kits are recommended because generally that's the most economical way to go, and its definitely easier. Installing a mother- board can get dicey for the uninitiated. There are a lot of little wires to connect that can give you grief if they aren't in the right place.

Barebones kits come in many iterations. The most basic consists of a case, motherboard and power unit. Some have on board video and audio cards, others include modems and cable connections and some even sport keyboards, mice and speakers. Read the specs carefully because some of these components are expensive to buy separately.

Make a list of all the components that you require. Check off the ones that are included in the kit. This establishes what other parts you need. If you have same parts that you can use, check them off. Now you know what you have to buy. For in-depth detailed instructions on how to do this visit the computer page on: http://www.caveatemptorus.com

Often times its less expensive to buy all the components you require form the vendor of the kits. This is because of shipping charges, which are part of your over-all cost. But sometime parts you can get at auction can be so inexpensive that its worthwhile to pay the shipping charges.

All barebones kits come with an instruction manual and a phone number where you can get technical support. Neither is very good. People who don't understand English very well write the manuals and the technical support is like most free things. Actually, its not free, they are toll numbers. And are almost always busy. However most manufacturers have very good online help where you can trouble shoot if you have a problem.

Vendors that sell barebones kits usually have a thirty-day return policy. Try to do your building before it expires because if you go beyond that limit then you have to deal with the manufacturer which can be a hassle. Its much easier and may avoid expensive shipping charges if you deal with the seller.

When you select the components you require be sure that you procure compatible parts. Hard drives have different interfaces. Memory comes in many variations; some memory only works in specific motherboards. If you use the wrong type your machine wont work.

Once you have everything assembled, and your PC boots, you can install your operating system. This can be the most difficult part of the operation. If you are using a new hard drive its fairly easy. It will come with instructions and software for installing the OS. If you're using a used HD, then you have to format it. The best way to do this is to look at the hard drive and get the manufacturer and model number of the unit. Then you can download the instructions and software to perform this task.

Even if you don't save a fortune, you can end up with the computer that you want and have a sense of accomplishment.

Building Cheap Computers In 3 Easy Steps

2007-07-25T00:47:00.000-07:00

Just a decade ago, the only people who put computers together were those individuals who possessed an extensive technical background. Advancements in technology have eliminated some of the complexities in how computers work. This change has resulted in average people who have a basic understanding of computers being able to build a system themselves. Whether you are interested in building computers to establish a new hobby or to start a business, you can so in only a few easy steps and on a shoestring budget.

The first step in building cheap computers is to determine the route you want to use to build systems. You basically have three choices when considering building cheap computers: build a system from scratch, expand on a bare bones computer, or upgrade an existing system. Building a system from scratch can be a rewarding experience. However, it is not for everyone. If you are impatient or are intimidated by mechanical tools, you are better to choose one of the other two options.

Regardless of the method you choose, you will follow three basic steps:

1. Plan
2. Assemble
3. Test

The planning phase of your project involves determining the specifications for the computer you want to build. Once you know this information you can start shopping for parts that meet those specifications. Your main considerations should be
hard-disk, memory, and CPU (central processing unit). The hard drive is important because it determines how much information you are able to store on the computer. While you could build a computer with a hard drive smaller than 2 GB (gigabytes), it is not recommended.

The hard drive and memory work together. The amount of memory you place in your computer will directly affect how the system is able to complete the different processes that you request when using the system. If you have no idea what size hard-drive and the amount of memory you need, you should consider the type of operating system you intend to load on the system. You can consult the manufacturer of your hard-drive or review the information on Cheap-Computer-Guy.com, which features a list of minimum hard drive and memory requirements for various operating systems, and use this information as a guide.

The equipment presented in this article includes the basics of a computer system. Of course, nowadays people want far more than the basics and you undoubtedly feel the same way. There are optional components available that you may want to add to your systems, which include CD or DVD drives, a modem or other communication component for Internet connectivity, or a video graphics card.

Once you have decided on the specifications of the computer you want to build, you are ready to assemble the system. In addition to detailed information about the parts you will need to build your computer, cheap-computer-guy.com includes step-by-step instructions for assembling a cheap do-it-yourself computer.

When you have finished assembling the computer, you will then need to test to make sure that the system boots and that all components are functioning properly. Once you have completed all these tests you will have built your own cheap computer.

Build Computer Sound Card

2007-07-25T00:46:00.000-07:00

With each year we see more computers move from the office into the living room, becoming a key to multimedia home entertainment centers. They are gradually replacing stereo systems and video players, and even karaoke machines and televisions.

Accessing these new uses for computers requires specialized components called video cards and sound cards. Even though most computer motherboards have built-in sound capacity, you really need to add an improved sound card in order to gain access to these advanced audio features.
Audio Cards

The standard built-in sound processor on computer motherboards is called AC 97. This typical sound system supports DVD (96 kHz, 16 bits, six channels) audio. The AC 97 built-in connections are somewhat noisy as a rule and the resulting quality is really unsuitable for high fidelity applications.

Unless you're a musician or video editor looking for a professional sound quality card capable of multi-track recording, there are appropriate no-frills cards that will do the job.

To improve the sound over the AC 97 specs and add features, install a third-party audio card in one of the PCI slots of your motherboard. The type of card that you need to buy depends on what you want to do. If you just want to watch DVDs, get a basic card. To record music, or connect a microphone, you'll need a more advanced card.

Digital Audio

All information in computers is digital, so sound must also begin in a digital format. Before we can hear it, the digital audio has to be converted to analog.

We're all familiar with digital audio because of the popularity of CDs. Until the 1980s, with the introduction of CDs, nearly all sound was analog. An analog sound signal is a continuous representation of sound. Digital audio tries to recreate analog signals as closely as possible. No matter what the conversion is, there remains missing audio information in a digital signal.

The analog signal is broken up into individual steps. The CD audio standard is 44.1 kHz at 16 bits. This means there are 44,100 steps per second. Each step can be symbolized with a number up to 16 bits (65,536). DVD (96 kHz at 16 bits) and DVD audio (192 kHz at 24 bits) are other digital audio standards.

Digital audio must be converted into an analog signal with a DAC (Digital Audio Converter) to be heard, DAC quality varies significantly, which is a major factor in determining the cost of sound cards.

Things To Consider

The published specifications of sound cards provide a good idea of their level of quality. An essential number to look for is the S/N, or signal to noise ratio. The higher the S/N, which compares the audio signal with the background noise ratio, the better the quality. The S/N is expressed in decibels (db) and should be at least 90db. Professional cards, for example, are frequently rated at more than 100db.

Also important is the number of channels the sound card supports. Surround-sound cards are available in 5.1 or 6.1 and 7.1 configurations. The first number tells you how many satellite speakers can be placed around the listening area. The .1 indicates the subwoofer channel used for low-frequency sounds.

The cost of audio cards is another good clue as to their quality. Basic cards that begin at $10 have a poor sound quality, while a $50 card is pretty decent.

If you want to record sound through your computer, you'll also need to look at the number of inputs the sound card has. Standard inputs are one stereo pair. Cards designed for recording studios have up to 10 inputs. Professional sound cards go for about $400.

Build Computer Memory

2007-07-25T00:45:00.000-07:00

Computer memory is called Random Access Memory (RAM). The information stored in RAM can be accessed randomly, rather than sequentially. This means that data can be found from any location at the same rate of speed. Other storage media, such as CD-Rom and hard drives, must wait while the drive spins to the correct location before the data can be accessed.

Computer memory is simply a storage area for the program code and the data that program uses. Computer programs can write and retrieve information from memory in any sequence, allowing for fast data retrieval and manipulation.
How Much RAM is Enough?

Simply stated, the answer is, as much as possible. Keep in mind, though, once you've reached a certain upper limit, which is determined by the computer program(s) used, investment in more memory will see a diminished return.

Adding more memory is one of the best ways to maximize computer performance. If you compare 2 identical computer systems, the one with the most memory will be the faster. More RAM equates to faster access. This is because the computer can place more program instructions into memory, relying less on the information stored on the slower hard drive.

Think of 512 Megabytes (MB) as the base standard for a modern computer. With that you can multi-task (run several applications concurrently). For instance, you can check email and download MP3s, without noticeable sluggishness.

Some applications, however, are more memory-greedy than others. Graphics programs, for example, are notoriously greedy. The memory needs are further exagerated by the operating system used. Microsoft Windows is far more demanding than, say, Linux. Currently, most PCs use Windows, though.

Should you notice your computer slowing down, consider adding more memory. Before committing to that option, however, try de-fragmenting your hard drive with a utility (program) designed for that sole purpose. A fragmented hard drive is a common cause of stalled computer performance.

Types of RAM

Right now DDR SDRAM is the most popular memory module. DDR stands for Double Data Rate, which means that the memory can be accessed twice per clock-cycle. SDRAM, the acronym for Synchronous Data Random Access Memory, has been the standard for memory modules for nearly a decade.

To add memory to your computer, you must install modules with the correct contact layout. Before purchasing new memory, you must know which type your motherboard will accept. The most common form factors are 168 pin, 184 pin and 200 pin.

You'll also need to know whether there are slots available on your motherboard. If all the slots are already in use, you'll have to replace 1 or all of the current modules with higher capacity ones. If there is at least 1 free slot, you can simply buy a new memory module and insert it in the empty slot.

A word of caution: whereas some motherboards can accept either SDRAM or DDR SDRAM, the 2 types cannot be mixed. You must decide on 1 or the other. Check the motherboard manual first to determine which kind of memory your computer requires.

And finally, when you are ready to install your brand new memory module, make sure of 2 things: the power is off (for your safety) and you are electrically grounded (for your computer's safety).

Build Computer Graphic Cards

2007-07-25T00:44:00.000-07:00

It takes the intereaction of both an input and an output device in order for information to be reflected in a computer. When information is entered, for example, with a keyboard, mouse, or microphone, the computer then outputs the sound and/or visuals.

The computer provides visual output via the video card. This dedicated circuitry interprets information from the CPU (Central Processing Unit) and then sends it to the monitor for you to view. Computer systems with Graphical User Interfaces (GUI), such as Microsoft Windows, rely on fairly sophisticated video output to provide information.

Because they're an essential part of the computer, many motherboards have built in video processors. They handle everyday computing tasks such as word processing and e-mail. Video editing, graphical design work, and high-end games require specialized video cards capable of 3-D interpretation.
Types Of Cards

Integrated video processors are connected directly to a monitor as a part of the motherboard. This is the least expensive video adapter that requires no special installation consideration. They don't require extra cards. You just plug in the monitor and you're in business.

Integrated video offers relatively limited applications and not every motherboard has integrated video. They're especially inadequate for 3-D rendering for graphic design and game uses,

Before you buy a video card, you must know which type of card your computer's motherboard accepts. AGP (Advanced Graphics Port) has been the standard for some time now. AGP is popular for low and mid-range video cards, and will likely be available for another few years.

AGP is gradually being replaced, however, by PCI-Express. Almost all the high-end video cards use PCI-Express. If you have special graphics requirements, be certain your motherboard has this kind of slot.

What Will It Cost?

The type of video card appropriate for your computer, depends on what applications you plan to use. Unless you're playing the latest in hot computer games, you can easily manage with a 64 MB PCI or AGP card that cost under $50.

Serious gamers should consider cards in the 256 MB range, which will require an investment of $100-$200 for an AGP 8X or PCI-Express card.

Specialized graphic cards for video editing, which have Video In/Video Out (VIVO) capabilities, will run between $200 and $500.

What Are The Specs?

Just when you figured your computer's memory requirements were taken care of, along comes something new. High-end video memory cards are identified by the quality of the video processor and the amount of money they cost.

Video cards have their own integrated memory chips. A specific amount of memory is required just to get an image shown on the monitor. Eight megabytes, for example, is required to display a screen resolution of 1600 x 1200.

Most video cards have a minimum of 32 MB or 64 MB. Extra memory is used for enhancing the refresh rate to provide a more stable display and for 3-D imaging. Cards designed for professional graphic design have the maximum amount of memory, which is 640 MB.

64 MB is suitable for routine computing such as word processing and Internet browsing. Computer games and video editing applications need cards with between 128 MB and 256 MB.

Another factor that determines the quality of the video card is the processor, sometimes called the GPU (Graphics Processing Unit). Modern GPUs are extremely efficient in 3-D video rendering and, like CPUs, require a dedicated cooling fan.

Build Computer CPU

2007-07-25T00:43:00.000-07:00

The Central Processing Unit (CPU) is commonly expressed as the computer's 'brain'. The 'engine' would be a more appropriate analogy, as a computer has no innate intelligence. The CPU performs mathematical and logical calculations and decodes program instructions running from the computer's memory.

CPU Power

The CPU, sometimes called the processor, central processor or micro processor, is rated by the number of bits that can be processed in a single instruction and the number of instructions that can be performed in a second. They are rated at 32 bits or 64 bits, and their clock-speed ranges from 1.5 GHz to 3.5 GHz.

One Gigahertz (GHz) is 1 billion cycles per second. A 32-bit 2-GHz CPU can process 2 billion instructions per second, each with a maximum length of 32 bits, which in binary numbers is capable of expressing the decimal number 4,294,967,295. In short, a 32-bit 2-GHz processor is amazingly powerful.

The more powerful CPUs, however, can't do anything more complex than others; they simply operate faster. The faster the CPU can do its work, the faster the computer operates. There are other computer components that may limit the speed of the computer, but the CPU speed is recognized as a major indicator of computer performance.

Major CPU Manufacturers

Intel and AMD are the 2 major CPU manufacturers. They have been competitors for years and take turns making technological advances. AMD appears to be the current leader, with its 64-bit Athlon processors, but the real-world differences between top-of-the-line processors are usually minor.

There are a few important factors that determine whether a particular CPU can be used with a specific motherboard, the most important being the physical layout. Motherboards are designed to accept a particular family of processors, which must be able to accept the pin design of the processor.

The pin design is usually referred to as 'Socket x' -- Socket A, Socket 939, or Socket 478. The other important factor to consider when choosing a CPU is the speed. Motherboards have a maximum processing speed, so if you are trying to fit an older motherboard with a newer CPU, you may encounter problems.

Choosing a CPU

Deciding on which CPU to buy depends a great deal on what you need it for. Office applications, like word processors and spreadsheets, don't require a great deal of computing power.

Whereas games are among the most demanding of computer applications, they often require the fastest and most powerful components available. If you are an avid computer gamer plan on a CPU rated at 3 GHz or more. Prices start at about $200 for a 32-bit processor ranging up to more than $1,000 for the latest 64-bit processors.

For modest computing needs, a CPU in the 2 GHz range will be sufficient and much more reasonably priced. They start as low as $70 for 32-bit processor, with 64-bit processors available for about $150. Processors in this size and price range are suitable for most computer applications, including graphics, video work and audio recording.

For simple word processing and Internet use, consider purchasing a CPU in the 1 to 2 GHz range. They are the real bargains and are available for less than $40 for a 32-bit A 1 GHz processor, and most processors in this range, is less than $100.

Build Computer Components

2007-07-25T00:40:00.000-07:00

There are many fancy add-ons for computers these days, but before you install any of them, the basic components of the computer must be connected and operating properly. If 1 of these main components is missing, its not a computer.

The 4 essentials of every computer system are: a motherboard, a Central Processing Unit (CPU), memory, and a hard drive. These components are installed in a case to which are attached a monitor, a keyboard and a mouse. Thats your basic computer.

Mother WHAT?

The motherboard ("mobo" for short) provides the foundation. Everything attaches to the mobo -- the CPU, memory, hard drive, monitor, mouse, keyboard, add-on cards, and extra peripherals like printers, scanners, and speakers. We could say that the motherboard is like the nervous system and skeleton of the human body -- it provides support for the internal components and also passes information among all the computer parts.

CPU

If the motherboard is the nervous system, then the CPU is the brain. Most of the mathematical manipulations that make computers operate are done by the CPU. Other components may also have their own processors, but their results still have to be passed through the CPU.

The speed of the computer is usually measured by the speed of the CPU. Even though there are other factors affecting overall speed, the CPU rating is generally seen as the single most important measure of performance.

Modern CPUs are usually rated between 2.0 GHz and 3.0 GHz, although each passing month will see increasing performance. This measurement refer to the number of calculations the processor can make in 1 second, so obviously the higher the number, the faster the computer.

CPUs generate a lot of heat doing this work, so they need a heat sink and fan to keep them from overheating. Heat is a major enemy of the computer and directly affects its life span.

Computer Memory

RAM (Random Access Memory) is the part of the computer that stores information the computer needs while it is operating. It is Random Access because the computer can get the data in any order, not necessarily the order in which it is stored. Generally speaking, the more RAM the better. 512 to 1024 megabytes is fairly common for memory.

The most common type of RAM these days is DDR-SDRAM, which stands for double-data-rate synchronous dynamic random access memory. We already know what the RAM part means. DDR means that the data is accessed twice as fast as ordinary RAM.

The latest type of RAM is DDR2. It offers even faster access rates that DDR and is quickly becoming the standard for computer memory.

Hard Drive

Since the data contained in RAM is lost when the computer is turned off, there has to be a place to store it permanently. This is what the hard disk is for. It holds the computers operating system. An operating system like Windows uses around 4 gigabytes of hard drive space. The extra space is used to install computer programs and to store your personal data.

80 gigabyte hard drives are very common, but they are available at up to 400 GB, and more than 1 can be installed in a computer case for added security and convenience.

Peripherals

All you need to complete the basic computer system is a monitor, keyboard and mouse. Accessories like a printer or scanner are useful for office work, and gamers will probably want to add speakers and joystick controls.

So there you have it. The basic computer needs just 7 major components. For the best performance, these components must integrate well. The motherboard is the most important component for determining the type and specification of the other parts. Choosing an appropriate mobo for your computer needs is the first step and may require a quick call to your local geek. Soon YOU will be considered the local geek!

Build Your Own Computer Or Buy

2007-07-25T00:39:00.001-07:00

Many people are intimidated by a look inside a computer case. At first glance all those wires and components can look terrifyingly complex. Actually having to put them all together yourself may seem impossible.

Not to worry! Even though they are the products of advanced technology, the various components of a personal computer (PC) fit together with relatively simple connections. If you can use a screwdriver and follow simple instructions, you can build your own PC.
Advantages To Building A Computer

You are probably asking yourself why anyone would bother to build a PC. After all, you can buy a cheap computer in almost any retail store. If cost is your only consideration, you probably are better off buying one of those cheap machines. But if you have any special requirements for software or hardware, youll benefit from the total control over the type and quality of components you get from building your own PC.

You can save some money, too. Although you probably can't match the price of the cheapest preassembled PC, once you begin adding on the inevitable customized hardware, the costs go up anyway, and building your own computer starts looking cheaper. And don't forget--those super-cheap PCs are bare-boned systems. Unless you need a computer only for basic word processing and e-mail, you will probably have to upgrade anyway.

Building your own PC can be a great learning experience. You will gain a better understanding of how the various components work together, knowledge that can be useful for troubleshooting. If your computer ever breaks down, you may be able to pinpoint the problem and fix it yourself, saving money on expensive repair bills.
Disadvantages

The major disadvantage in building your own PC is that you don't get a system-wide warranty. For example, if a malfunctioning motherboard fries your memory chips, you may not be able to get compensation for the damaged memory. If something like this happens with a store-bought system you could probably get the computer repaired under the warranty.

However, if you buy all the components at the same time from the same retailer, you are more likely to be compensated for this kind of situation.
Getting the Best

You are pretty well guaranteed to get the best computer when you build your own system. Big retailers often use cheaper OEM (Original Equipment Manufacturer) components to cut down on costs. Components like these can compromise the performance of a computer system. Although you can buy OEM components retail, the trade-off in reliability and stability is usually not worth it. Brand name components are just a bit more expensive, but theyre well worth the cost.
The Bottom Line

Building your own PC has a lot to offer. You'll be assured of getting the best components available, which translates to the best and most reliable computer for your money. You will learn about computer components and how to choose parts with the best performance. When it comes to servicing your computer, you may be able to pinpoint the problem yourself and replace the malfunctioning part.

Don't be intimidated by the task of connecting the computer components together. Many of the internal connections are molded so that it is impossible to fit them together the wrong way. If you have ever assembled a child's toy, you are more than capable of assembling a computer.

Oh, and one final advantage. The bragging rights of telling your friends that you built your own computer!

Cheap Computers Guide

2007-07-24T17:31:00.000-07:00

Building your own computers. The first step in building cheap computers is to determine the route you want to use to build systems. You basically have three choices when considering building cheap computers:

Finding cheap computer deals to upgrade your computer. If you currently have a computer and you want it to be able to perform more functions, you don’t have to get rid of it and spend a lot of money on a new system. You can simply purchase components to upgrade your computer. If you seriously consider upgrading your computer, now is a perfect time to do so. As with computers, prices of computer components are at an all-time low.

Save your money by get refurbished computers at up to 80% savings and there is no different in the quality or warranty.

Step by step guide to build your own computer:

Build computer or buy - Learn to build a computer -- build or buy decision process
Build computer components - Learn to build a computer -- component selection
Build computer CPU - Learn to build a computer -- CPU
Build computer graphic cards - Learn to build a computer -- select a graphics card
Build computer memory - Learn to build a computer -- memory selection and installation
Build computer sound card - Learn to build a computer -- sound card selection
Build cheap computers- Just a decade ago, the only people who put computers together were those individuals who possessed an extensive technical background. Advancements in technology have eliminated some of the...
Build Your Own Computer - If I cand do it so can you Written by: George W. Cannata Im eighty-one years old and I bought my first computer six years ago. When I bought it I hardly knew how to turn it...