If you’re computer was a human being, then the processor would be its brain. The processor or the CPU carries out the instructions of the programs, that’s why it’s speed is an essential factor. Generally, the faster its speed, the faster your computer works. Processors come in dual or quad cores. Meaning, there are two or more processors in one. So the more cores, the better the performance. It means faster work progress and better opportunity for you and your computer to multitask.