What you need to build a tower

If I am thinking about building a desktop what would I need?

The most important part is of course the main tower. Which you need to build up your self. First you need to go to amazon(www.amazon.com) or new egg(www.newegg.com) and look up for parts. The tower case, a main board, a power supply if the case doesn't have one build in, CPU, rams, hard drive and graphic card if you want it to be more powerful. Usually in the processor (CPU) there is an integrated graphic card, but that one is never enough; even you want to run some filter effect on Photoshop, it will lag a while. So a discrete graphic card is recommended.

CPU (Central processing unit) is the most important part of a computer. It is in charge of all the calculations that a computer is needed. A better CPU can make a huge different to the computer. Nowadays the two most famous brand is Intel and AMD. They both have CPU at all price levels, you can choose one with your own preference.

Main board is where everything is put on, CPU, hard drive, ram and graphic card. It is like back bone of the computer. Good main boards have protection for over heat, static electricity and other problems that may break your computer. So main board is also a very important part.