Category Archives: Computer Parts
Building A Computer Introduction
Building A Computer Introduction
If you are reading this article, you are probably wondernig, why and how do you build a computer. Building your own computer is more simple than you think and has many benefits.
Why Build A Computer?
Building a computer has many benefits over buying a premade. First of all, it is generally cheaper if you build your own than buying one. If you shop your components, your DIY(Do it yourself) computer will be cheaper than its premade equivalent. If you build your own computer, it will be faster than one that is premade, because most computer manufacturers use cheap components and try to cut corners to cut down costs. Additionally, your self built computer has more room to upgrade if you so decide to in the future. Prebuilt computers usually only have enough expansion slots for the components that are going to be in the computer. Because of this, your prebuilt computer will become obsolete sooner. Also, building a computer is a satisfying experience and you will learn more about how your computer works.
How do I go About Building a Computer?
Building a computer is probably much simpler than you think. Especially now, things have been simplified and standardized. First, you pick out components and make sure they are all compatible. Once you get the parts, you put them together! This guide was made to show you how to do everything and contains pictures and good information to make building a computer a fun and rewarding experience. For more information about building a computer, be sure to check out the next article in this guide!
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Computer Components for Idiots
Computer Components for Idiots
There are many fancy add-ons for computers, but the basic components of the computer are simple and universal. If 1 of these main components is missing, it’s 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. That’s your basic computer.
Mother WHAT?
The motherboard (“mobo” for short) is the foundation. Everything attaches to the mobo — the CPU, memory, hard drive, monitor, mouse, keyboard, add-on cards, even additional peripherals like printers, scanners, and speakers. The motherboard is like the nervous system and skeleton of the human body — it provides support for the internal components and also passes information between 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 other factors also affect 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. The higher the number, the faster (better) 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 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 and is quickly becoming the standard for computer memory.
Hard Drive
All the data contained in RAM is lost when the computer is turned off, so there has to be a place to store it permanently. This is what the hard disk is for.
It holds the computer’s 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 common, but 400 GB units are available. Furthermore, you can install more than 1 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!
5 Steps to Securing Your Windows XP Home Computer
5 Steps to Securing Your Windows XP Home Computer
Most people are aware that there are continuous security issues with Microsoft’s Windows operating system and other programs. However, what most people do not realize is how easy it is to significantly improve your computer’s security and reduce the likelihood of becoming a victim to ever increasingly sophisticated threats that lurk on the internet. These steps should take less than a couple of hours to complete and should not clean out your wallet.
1) Windows Update – the first crucial step you need to take to make sure that all your Microsoft applications have all the latest product updates installed. These updates or “patches” address security vulnerabilities and other issues. Microsoft usually issues these updates on a monthly cycle. Visit the Microsoft website or switch on automatic updates from the Windows Control panel. Even if your “new” computer is second hand this is still a critical first step. If you buy a used computer with Windows XP make sure Service Pack 2 or SP2 is installed.
2) Strong Passwords – people often overlook this but having well thought through passwords is an important element of your computer security. A strong password should include at least 8 characters with a mixture of text, symbols and numbers. As a minimum you need to make sure the services most at risk have a strong log-in password. These services include your bank, credit card, other financial services like PayPal, your email address and any other services like Ebay which hackers can use to generate profit.
3) Anti Virus Protection – while it is fair to say the threat of the computer virus has receded during the last couple of years they can still inflict serious damage on your computer. Part of the reason why the threat has reduced is because PC manufactures are now more frequently bundling anti virus packages with their new computers. For example last year my new Dell shipped with a 90-day trial of McAfee’s Internet Security Suite. The best bet here is to purchase a security package which includes firewall and anti virus software as a minimum. Top brands include McAfee and Symantec Norton products. However, Microsoft has recently entered the market with their “OneCare” offering which is very aggressively priced.
4) Firewall – if you are using a broadband connection then a firewall is definite requirement to manage the traffic flowing between your computer and the internet. A firewall monitors the inbound internet traffic passing through the ports of your computer. Better products also monitor outbound traffic from your computer to the internet. As per above the best bet here is buy a firewall application as part of a security package which most vendors offer as standard. If a hardware firewall is included as part of your router package then you do not need anything else. A company called Zone Labs offer a great free firewall product called Zone Alarm which should be used as a minimum. Windows XP does now ship with a free firewall but the product does not monitor outbound communication and therefore I believe does not offer adequate protection.
5) Anti Spyware Tool – this software is the last piece in your basic internet security set up. This tool helps combat spyware and adware. There is a good mixture of free and paid versions on offer. Good free software include Microsoft’s Windows Defender, Spybot S&D or Ewido Anti-Malware. Ewido Anti-Malware is frequently recommended in computer help forums. Be careful if you decide to purchase a solution. There are a number of rogue vendors out there which aggressively push products which offer you little value. Stick to trusted names like Webroot’s Spy Sweeper or PC Tool’s Spyware Doctor. These products always come out well on independent tests.