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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 - Technology, Invention, History | Britannica

    Oct 17, 2025 · By the second decade of the 19th century, a number of ideas necessary for the invention of the computer were in the air. First, the potential benefits to science and industry of …

  4. Computer - History, Technology, Innovation | Britannica

    Oct 17, 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 science | Definition, Types, & Facts | Britannica

    Oct 17, 2025 · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …

  6. Ada Lovelace | Biography, Computer, Day, & Facts | Britannica

    Oct 14, 2025 · Ada Lovelace is considered the first computer programmer. Even though she wrote about a computer, the Analytical Engine, that was never built, she realized that the computer …

  7. computer summary | Britannica

    A computer consists of the central processing unit (CPU), main memory (or random-access memory, RAM), and peripherals (e.g., a keyboard, a printer, disc drives).

  8. Antikythera mechanism | Description, Purpose, & Facts | Britannica

    4 days ago · The remains of this ancient “computer,” now on display in the National Archaeological Museum in Athens, were recovered in 1901 from the wreck of a trading ship …

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

    Oct 11, 2025 · personal computer (PC), a digital computer designed for use by only one person at a time.

  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 …