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

    Jun 16, 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. Computer - Technology, Invention, History | Britannica

    Jun 16, 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

    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, calculating …

  4. Computer - History, Technology, Innovation | Britannica

    Jun 16, 2025 · The history of the solving of these problems is the history of the computer. That history is covered in this section, and links are provided to entries on many of the individuals …

  5. 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. …

  6. computer summary | Britannica

    computer, Programmable machine that can store, retrieve, and process data. A computer consists of the central processing unit (CPU), main memory (or random-access memory, RAM), and …

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

    May 29, 2025 · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …

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

    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 symbols, that are …

  9. Computer - Memory, Storage, Processing | Britannica

    Jun 16, 2025 · Computer - Memory, Storage, Processing: The earliest forms of computer main memory were mercury delay lines, which were tubes of mercury that stored data as ultrasonic …

  10. Application software | Definition, Examples, & Facts | Britannica

    Jun 6, 2025 · Application software is distinguished from system software, which controls a computer’s internal functioning, chiefly through an operating system, and also controls such …