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

    2025年8月25日 · A computer is a programmable device for processing, storing, and displaying information. Learn more in this article about modern digital electronic computers and their …

  2. Computer - History, Technology, Innovation | Britannica

    2025年8月25日 · Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.”

  3. What is a computer? - Britannica

    2025年8月25日 · 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 …

  4. computer - Kids | Britannica Kids | Homework Help

    Computer software is divided into two basic types—the operating system and application software. The operating system controls how the different parts of hardware work together. …

  5. Computer - Technology, Invention, History | Britannica

    2025年8月25日 · By the second decade of the 19th century, a number of ideas necessary for the invention of the computer were in the air. First, the potential benefits to science and industry of …

  6. Ada Lovelace | Biography, Computer, & Facts | Britannica

    2025年9月13日 · Ada Lovelace is considered the first computer programmer. Even though she wrote about a computer, the Analytical Engine, that was never built, she realized that the …

  7. Jacquard loom | Definition, HIstory, Computer, & Facts | Britannica

    These punched cards were adopted by the English inventor Charles Babbage as an input-output medium for his proposed Analytical Engine (which would have been the first digital computer) …

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

    2025年9月17日 · personal computer (PC), a digital computer designed for use by only one person at a time.

  9. ENIAC | History, Computer, Stands For, Machine, & Facts | Britannica

    2025年8月21日 · ENIAC, the first programmable general-purpose electronic digital computer, built during World War II by the United States and completed in 1946. The project was led by John …

  10. Z3 | computer | Britannica

    In computer: Konrad Zuse …machines were really calculators—not computers—his Z3, completed in December 1941 (and destroyed on April 6, 1945, during an Allied air raid on …