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

    Oct 17, 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

    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 …

  3. Computer architecture | Definition & Facts | Britannica

    Nov 11, 2025 · Computer architecture, structure of a digital computer, encompassing the design and layout of its instruction set and storage registers. The architecture of a computer is chosen …

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

    2 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 …

  5. Computer - Technology, Invention, History | Britannica

    Oct 17, 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.

  6. Computer - History, Technology, Innovation | Britannica

    Oct 17, 2025 · Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.”

  7. Digital computer | Evolution, Components, & Features | Britannica

    Oct 17, 2025 · Digital computer, any of a class of devices capable of solving problems by processing information in discrete form. It operates on data, including magnitudes, letters, and …

  8. Quantum computer | Description & Facts | Britannica

    Oct 29, 2025 · Quantum computer, device that employs properties described by quantum mechanics to enhance computations. Plans for building quantum computers have been …

  9. 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.

  10. list of notable computer viruses and malware - Encyclopedia …

    Malware (a portmanteau of the terms malicious and software) consists of computer viruses, spyware, computer worms, and other software capable of stealing devices’ data or running …