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

    Oct 17, 2025 · Since the development of the Harvard Mark I, the digital computer has evolved at a rapid pace. The succession of advances in computer equipment, principally in logic circuitry, is …

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

    Nov 1, 2025 · A typical personal computer assemblage consists of a central processing unit, which contains the computer’s arithmetic, logic, and control circuitry on an integrated circuit; …

  4. ENIAC | History, Computer, Stands For, Machine, & Facts | Britannica

    Oct 18, 2025 · ENIAC, the first programmable general-purpose electronic digital computer, built during World War II by the United States and completed in 1946. The project was led by John …

  5. Computer - Supercomputing, Processing, Speed | Britannica

    Oct 17, 2025 · The physical elements of a computer, its hardware, are generally divided into the central processing unit (CPU), main memory (or random-access memory, RAM), and peripherals.

  6. Computer - History, Technology, Innovation | Britannica

    Oct 17, 2025 · The mill was the calculating unit, analogous to the central processing unit (CPU) in a modern computer; the store was where data were held prior to processing, exactly …

  7. Definition, Characteristics, Examples, & Facts - Britannica

    Oct 18, 2025 · Supercomputer, any of a class of extremely powerful computers. The term is commonly applied to the fastest high-performance systems available at any given time. Such …

  8. Computer - Technology, Invention, History | Britannica

    Oct 17, 2025 · The mill was the calculating unit, analogous to the central processing unit (CPU) in a modern computer; the store was where data were held prior to processing, exactly …

  9. Computer security | Definition & Facts | Britannica

    Oct 15, 2025 · Computer security, the protection of computer systems and information from harm, theft, and unauthorized use. Computer hardware is typically protected by serial numbers, …

  10. Computer programming language | Definition, Examples,

    Oct 15, 2025 · A computer programming language is any of various languages for expressing a set of detailed instructions for a computer. The earliest programming languages were …