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  1. Computer | Definition, History, Operating Systems, & Facts | Britannica

    Dec 10, 2025 · A computer is a programmable device for processing, storing, and displaying information. Learn more in this article about modern digital electronic computers and their design, constituent …

  2. Computer - Technology, Invention, History | Britannica

    Dec 10, 2025 · Computer - Technology, Invention, History: By the second decade of the 19th century, a number of ideas necessary for the invention of the computer were in the air.

  3. What is a computer? | Britannica

    Oct 20, 2025 · A computer is a machine that can store and process information. Most computers rely on a binary system, which uses two variables, 0 and 1, to complete tasks such as storing data, …

  4. computer summary | Britannica

    Computer, device for processing, storing, and displaying information. Computer once meant a person who did computations, but now the term almost universally refers to automated electronic machinery.

  5. Personal computer (PC) | Definition, History, & Facts | Britannica

    Nov 27, 2025 · personal computer (PC), a digital computer designed for use by only one person at a time.

  6. Computer - History, Technology, Innovation | Britannica

    Dec 10, 2025 · Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.”

  7. Computer science | Definition, Types, & Facts | Britannica

    Dec 2, 2025 · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information.

  8. Computer Definition & Meaning | Britannica Dictionary

    COMPUTER meaning: an electronic machine that can store and work with large amounts of information often used before another noun

  9. Why Are Some U.S. States Called Commonwealths?

    Kentucky, Massachusetts, Pennsylvania, and Virginia are all known as commonwealths because their constitutions use that term. However, there are no legal differences between these commonwealths …

  10. Bill of Rights | Definition, Origins, Contents, & Application to the ...

    Dec 8, 2025 · Bill of Rights, the first 10 amendments to the U.S. Constitution, adopted as a single unit in 1791. They constitute a collection of mutually reinforcing guarantees of individual rights and of …