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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. 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 …

  3. 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 …

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

    2025年9月15日 · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …

  5. 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.”

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

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

  7. 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. …

  8. Computer - Home Use, Microprocessors, Software | Britannica

    2025年8月25日 · Computer - Home Use, Microprocessors, Software: Before 1970, computers were big machines requiring thousands of separate transistors. They were operated by …

  9. Computer program | Definition & Facts | Britannica

    The first digital computer designed with internal programming capacity was the “Baby,” constructed at Manchester in 1948. A program is prepared by first formulating a task and then …

  10. Computer - Output Devices | Britannica

    2025年8月25日 · Computer - Output Devices: Printers are a common example of output devices. New multifunction peripherals that integrate printing, scanning, and copying into a single …