central processing unit

noun

plural central processing units
: 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 peripherals, and that manages the system's other components : cpu

Examples of central processing unit in a Sentence

Recent Examples on the Web
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IonQ, a leading provider of quantum computing solutions globally, reached a major milestone after successfully demonstrating quantum error correction using a real-time decoder that can run on a single central processing unit (CPU). — Ameya Paleja, Interesting Engineering, 23 Sep. 2026 Unlike generative AI model training, which relies heavily on graphics processing units, or GPUs, the proliferation of AI agents promises to significantly boost demand for central processing units, or CPUs. — CNBC, 22 Sep. 2026 Speed Tablets have a central processing unit that controls its speed. — Bestreviews, Mercury News, 27 Aug. 2026 And those signals travel to some central processing units so that the animal knows to like move away. — Quanta Magazine, 6 Aug. 2026 See All Example Sentences for central processing unit

Word History

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of central processing unit was in 1956

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Cite this Entry

“Central processing unit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/central%20processing%20unit. Accessed 29 Sep. 2026.

Kids Definition

central processing unit

noun
: CPU

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