- noun a group of circuits that performs the basic functions of a computer. The CPU is made up of three parts, the control unit, the arithmetic and logic unit, and the input/output unit.
- noun a section of the CPU that performs all arithmetic and logical functions.
- The portion of a computer which has the necessary circuits to interpret and execute instructions, and to control all other parts of the computer. The CPU consists of the control unit and the arithmetic-logic unit, both usually contained on a single chip, in which case it is also called microprocessor. Also called chip (4), processor (1), or central processor (1).
- That contained in a CPU (1), plus memory, buffers, and related components. Also called processor (2), or central processor (2).
- The enclosure which houses all the components a computer utilizes, with the exception of the external peripherals, such as monitor, mouse, keyboard, printer, and so on. Also called system unit.
- acronym forcentral-processing unit
- acronym forcentral processor
- acronym formain processor
- In a computer with two or more CPUs, the main CPU. It is this CPU that controls all others.