Guidelines For Purchasing Computer Desktop & Laptops
Computer desktops and laptops are not luxurious items anymore. These have become an essential commodity for everyone. One can use a computer for playing and editing videos, playing games, managing accounts, etc. One can upgrade or replace any part of a computer because it is build modularly. Here are some useful guidelines that will help you in making an informed decision -
Monitor -
It is the primary component of a computer used for displaying the images and data. CRT (cathode ray tube) and LCD (liquid crystal display) are the two options available in the monitors. LCD monitors consume less space and have high quality as compared to the CRT monitors.
RAM -
Random Access Memory or RAM is a kind of computer data storage. It stores those system files which are used during booting. Try to opt for a minimum of 512 MB RAM because RAM governs the speed of your system. Now-a-days new systems are coming with minimum 1GB DDR RAM.
Processor -
Processor is the heart of a computer system. Two primary manufacturers of computer microprocessor are Intel and Advanced Micro Devices (AMD). Intel's processors include Celeron, Pentium, and Core. AMD's desktop processors include Sempron, Athlon, and Phenom. You should consider the following points before you finally buy a processor -
1. Clock Speed
The number of instructions that a computer executes in a second determines the clock speed. It is measured in gigahertz (GHz). Example- 3.6 GHz, 2GHz etc,
2. Cache Memory
It stores the previously accessed data. It also serves as a buffer between RAM and processor. This simplifies the computer task of fetching the data.
Hard Disk Drive -
It is permanent storage device and store your the data on the system. The size or storage capacity of hard drives are continuously increasing, 80GB is a common one. The size of a hard disk depends upon your need. Usually experts prefer to buy a SATA hard drive of 5400 or 7200 rpm.
Motherboard -
It is an electronic board where all the CPU components are attached. Some of the motherboards come with attached video card and sound card. You should ask the vendor whether motherboard is compatible with your RAM and processor or not.
Video Card -
Video card determines the quality of the multimedia images. So,look for a video card that has high resolution. An advanced video card is also essential for high end computer games.
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