In a PC, the central processing unit (CPU) is the primary control device for the entire computer system. The CPU is technically a set of components that manages all the activities and does much of the "heavy lifting" in a computer system. The CPU interfaces, or is connected, to all of the components such as memory, storage, and input/output (I/O) though communications channels called busses. The CPU performs a number of individual or discrete functions that must work in harmony in order for the system to function. Additionally, the CPU is responsible for managing the activities of the entire system. The CPU takes direction from internal commands that are stored in the CPU as well as external commands that come from the operating system and other programs. It is important to nore that these functions occur in all CPUs regardless of manufacturer
I have a 64 bit CPU in my head.
December 27, 2003