Building your own computer is cheaper than buying one off the shelf. Most pre-built computers are made with OEM (original equipment manufacturer) components, which are not of high quality.
Building your own computer
Before starting to assemble the computer, you should wear a wrist strap because static electricity can damage the parts of the computer. You will need a screwdriver and screws to build your own computer.
So, how to build your own computer from scratch? The first step is to remove the cover from the computer case. Clean the case and remove any dust from the power supply. If you have an ATX case, you will need an ATX power supply.

There are two brands of processors available today: the
AMD Phenom line and the Intel Core line. The Intel Core 2 Duo processor is good enough, if you want to just use productivity software such as Microsoft Office.

You should install the components on to the motherboard, before you install the motherboard in the case. Sometimes, the processor comes with a cooling fan and a heat sink attached. Intel uses Socket B for its Intel Core i7 processors, while AMD uses Socket AM3 for its AMD Phenom II processors.

The next step in building your own computer is installing the heat sink on top of the processor. Most
motherboards have two or four memory slots. The memory modules, which may be DDR SDRAM (double data rate synchronous dynamic random access memory) or the faster DDR2 SDRAM, go into the DIMM (Dual Inline Memory Module) slots.

A PCI Express video card is better and more popular than an AGP video card. The hard drive can be SCSI (Small Computer System Interface) or ATA (Advanced Technology Attachment). A PATA drive, which is also called an IDE (Integrated Drive Electronics) drive, is slower than a SATA hard drive. The cache size of the hard drive can be 16 MB or 32 MB. An optical drive can be a CD drive or a
drive. If a CD drive has a speed of 52x, then it has a read speed of 7800 kilobytes per second. A CD drive has a different write speeds for CD-R and CD-RW.

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