
Central processing unit - Wikipedia
The "central processing unit" term has been in use since as early as 1955. [12][13] Since the term "CPU" is generally defined as a device for software (computer program) execution, the earliest …
CPU Definition & Meaning - Merriam-Webster
The meaning of CPU is the component of a computer system that performs the system's basic operations (such as processing data), that exchanges data with the system's memory or …
What is a central processing unit (CPU)? - IBM
A central processing unit (CPU) is the primary functional component of a computer. The CPU is an assemblage of electronic circuitry that run a computer’s operating system and apps and …
Central Processing Unit (CPU) - GeeksforGeeks
Dec 8, 2025 · The Central Processing Unit (CPU) is like the brain of a computer. It’s the part that does most of the thinking, calculating, and decision-making to make your computer work.
What Is a CPU? - ExtremeTech
Mar 8, 2025 · A CPU or central processing unit is a computer system's most powerful and important component.
Central processing unit (CPU) | Definition & Function | Britannica
Jan 6, 2026 · Central processing unit (CPU), computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. It constitutes the physical heart of the entire …
What Is CPU (Central Processing Unit)? - Computer Hope
Dec 23, 2025 · Alternately called a processor, central processor, or microprocessor, the CPU (pronounced sea-pea-you) is the central processing unit of the computer. A computer's CPU …
CPU Definition - What is a CPU (Central Processing Unit)?
Jul 11, 2014 · The CPU is the primary component of a computer that processes instructions. It runs the operating system and applications, constantly receiving input from the user or active …
What Is a CPU, and What Does It Do? - How-To Geek
Oct 28, 2024 · The most important part of your computer, if you had to choose just one, would be the central processing unit (CPU). It's the primary hub (or "brain"), and it processes the …
What Is a CPU? - The Motley Fool
Jun 16, 2025 · A central processing unit (CPU) is the brain of your computer. Like a human brain, a CPU receives instructions from another part of the computer (the memory), processes the …