CPU - Central Processing Unit

What it does and why it is needed

What a CPU is

A CPU, or Central Processing Unit, is a component in a computer that is needed to help it run properly. In fact, is it actually the main part of a computer, and the part that controls all the others.

What a CPU does

A CPU is used to open programs such a Skype on a computer. A program is basically a set of instructions to the CPU. When you click on an icon, the program sends instructions to the CPU, which then relays those instructions to other components of the computer, which allows it to open the program.

How do you know when you have a good CPU?

There are four steps to finding the best CPU for you.


1. Pick a brand. The two best are AMD AND Intel.


2. Decide on a number of cores. Cores are like multipliers for the speed of the CPU, but the more cores, the more expensive the product.


3.Pick a speed. CPU speed is measured in GigaHertz, or GHz. Depending on what you are doing, you will want more or less speed. For example, if you are a gamer, you will want 2.5 GHz to run your game smoothly.


4. Make sure your chosen CPU matches the make of your motherboard. So, an Intel CPU will not work with an AMD motherboard, and vice versa.