Basic Knowledge for Buying Computer

To buy a good computer you need to decide what the computer will be used for. Common tasks include web browsing, office work, digital photography editing, watching movies, computer games, editing video, CD or DVD burning and other tasks.

Once you know what your computer will be used for you it will simplify the choice of different components, for example there is not point in buying very expensive LCD screen that will be great for gaming if it will be only used for editing office documents.

Computing has advanced rapidly during the last few years. With new technologies and improvements that were introduced it might be a little tricky to choose the best computer for your needs.

You will have many factors to consider when deciding on which computer equipment to buy. This guide will help you compare computer equipment features, and help you to examine and sift through many of the basic items before you buy a new computer. Components

A typical computer consists from the following components:
• Mother board
• Processor
• Memory
• Storage devices
• Display

Mother board
Motherboard is the main board of the computer, almost every computer part connects to it. The motherboard has slots for different components.
• In Processor socket each socket is designed for a specific type of processor so not every processor will fit every motherboard. This means that AMD processor will not work with Intel motherboard and vice versa.
• Memory socket is for the memory.
• Graphic card slot is a slot for the graphic card.
• PCI slot is used for add on cards such as modems, network adaptors, TV capturing cards, USB or Fire wire cards. There may be additional slot types on the motherboard but they are for legacy cards.

Processor
Processor is a chip that performs all the calculations in the computer. The processor operating frequency is measured in Hz. The processors are manufactured mainly by Intel and AMD. The processor connects to a socket on the motherboard. Each processor range is designed for a specific socket types. Since Intel and AMD use different socket types mother boards designed for Intel processors are not compatible with AMD and vice versa.

Memory
The operating memory is used by software for loading data for faster access. The memory size is measured in MB. Some programs require a certain amount of memory size for optimal results. The memory operates at different frequencies measured in HZ the faster the frequency the faster the performance. Each memory type is designed for a specific motherboard chipset. To pick a suitable memory for the motherboard check the motherboard‘s manufacturer specifications for the memory.

Storage Devices
Most hard drives in today market will provide more than enough storage. The basic computer equipment comes with 40GB or larger, which is plenty for most tasks. But for working with graphics, video, music, or large databases 80GB should be the minimum.

Display
There are two types of computer displays CRT and LCD.LCD monitors are more expensive but take less space than CRT monitors.
• CRT are based on the old cathode ray tube technology, they are cheaper than LCD monitors but take more space on the desktop.
• LCD stands for Liquid Crystal Display. The LCD displays are thin and take less space than CRT monitor. However some LCD monitors have slow response time that may lead to “ghost” artifacts during games or video files display.

Warranty and Tech Support
A one-year warranty on most computer equipment is plenty, because most problems seem to happen in the first year. If you want you can get an extended two to three year warranty for around $150 to $200.

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