An example of a CPU is the part of a computer in control of all its functions.
- (electronics, computing) central processing unit
- (video games) Any character or entity controlled by the game software.
- (slang) the main computer case containing the central components of a personal computer
cpu - Computer Definition
The central computational and control unit of a computer system, the CPU controls the interpretation and execution of instructions.The CPU contains the arithmetic logic unit (ALU), which performs mathematical calculations, and the control unit, which retrieves instructions from memory, accepts calculations from the ALU, and executes the instructions. The CPU often is contained on a single silicon chip, known as a microprocessor. CPU commonly is interchangeable with microprocessor and processor.
(Central Processing Unit) The computing part of the computer. Also called the "processor," it is made up of the control unit and ALU. Today, the CPUs of almost all computers are contained on a single microprocessor chip. In fact, multiple processing units on one chip are commonplace (see multicore). See microprocessor, control unit and ALU. Computer Vs. Computer System Technically, the CPU, clock and main memory make up a computer. A complete computer system requires the addition of peripheral control units, input, output and storage devices and an operating system. In practice, the terms "computer" and "computer system" are synonymous. From the Old Mainframer's Viewpoint Years ago, computer professionals involved with mainframes referred to the whole computer as the CPU, in which case, CPU referred to the processor, memory (RAM) and input/output channels.