CPU
CPU means "Central Processing Unit", which is the main processor, the "heart" of the computer. The central processing unit interprets and executes most of the com-puter commands. These instructions include arithmetic and logical operations. The CPU then forwards these commands to other units (e.g. other computer chips). It is located on a base that is attached to the mainboard. Depending on the task that the CPU has to process, it heats up very strongly. Therefore, the processor has to be cooled by a fan. The central processor unit carries out mathematical calculations and logical operations in the so-called binary system with the digits 0 and 1.