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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. What is a computer? | Britannica - Encyclopedia 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 …

  3. Computer - History, Technology, Innovation | Britannica

    Jun 16, 2025 · Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.” Such a …

  4. 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 …

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

    Jun 11, 2025 · Personal computer, a digital computer designed for use by only one person at a time. A typical personal computer assemblage consists of a central processing unit, which …

  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 security | Definition & Facts | Britannica

    May 19, 2025 · computer security, the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by the same means …

  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 virus | Definition & Facts | Britannica

    May 8, 2025 · Computer virus, a portion of a computer program code that has been designed to furtively copy itself into other such codes or computer files. It is usually created by a prankster …

  10. Computer chip | Definition & Facts | Britannica

    May 31, 2025 · Computer chip, integrated circuit or small wafer of semiconductor material embedded with integrated circuitry. Chips comprise the processing and memory units of the …

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