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

    Dec 22, 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 …

  2. What is a computer? | Britannica

    Dec 22, 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 …

  3. Computer - Technology, Invention, History | Britannica

    Dec 22, 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.

  4. Computer - History, Technology, Innovation | Britannica

    Dec 22, 2025 · It is not too great a stretch to say that, in the Jacquard loom, programming was invented before the computer. The close relationship between the device and the program …

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

    5 days ago · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …

  6. computer summary | Britannica

    Database, any collection of data, or information, that is specially organized for rapid search and retrieval by a computer. Databases are structured to facilitate the storage, retrieval, …

  7. 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.

  8. 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. …

  9. Computer worm | Malware, Cybersecurity & Networking | Britannica

    Malware typically infects a personal computer (PC) through e-mail, Web sites, or attached hardware devices. Mobile malware, including spyware and ransomware, attacks smartphones …

  10. Computer - Output Devices | Britannica

    Dec 10, 2025 · Computer - Output Devices: Printers are a common example of output devices. New multifunction peripherals that integrate printing, scanning, and copying into a single …