Central Processing Unit (CPU)

Inside the computer case, hidden amongst all the wiring and gizmos, is a particularly important part of the computer known as the central processing unit (of CPU, for short). The CPU is also known as the computer chip (because that's what it is) or the microprocessor (or processor, for short). Some say the CPU is the brain of the computer while others describe it as the heart. In any case, it's the thing that makes you computer a computer. The CPU does all the work: It calculates, it processes, it keeps things running smoothly. You might think of it as a talented stage manager. When it does its behind- the scenes job -well, you don't notice it; you simply enjoy the performance. Originally, CPU's were given wildly inventive names like Chip. Okay, maybe not. The names were actually based on numbers like 8088.