A processor is a small chip that goes in computers and other electronic devices. Modern processors can handle trillions of calculations per second and its basic job is to receive input and provide the appropriate output. The processor handles all the basic system instructions, such as processing mouse and keyboard input and running applications. Furthermore, most desktop computers contain a CPU developed by either Intel or AMD. Modern CPUs often include multiple processing cores, which work together to process instructions.
A CPU (Central Processing Unit) is like the brain of the computer. The CPU does all of the computers calculations; it commands the different components by assigning tasks. The CPU works by combinations of logic gates to process electric signals. The processor uses these electric signals to represent these numbers in binary. The CPU can work extremely fast through the calculations and this generates heat. To keep the CPU cool it often has a heat sink and fan attached. The heat sink removes the heat quickly from the CPU. The fan is there to cool down the heat sink. The CPU is often the most expensive component inside a computer.