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

    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 design, constituent …

  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 data, …

  3. 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.

  4. computer summary | Britannica

    Computer, device for processing, storing, and displaying information. Computer once meant a person who did computations, but now the term almost universally refers to automated electronic machinery.

  5. 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.”

  6. Who invented the computer? | Britannica

    Sep 24, 2025 · During World War II, physicist John Mauchly, engineer J. Presper Eckert, Jr., and their colleagues at the University of Pennsylvania designed the first programmable general-purpose …

  7. Computer programming language | Definition, Examples, & Popularity ...

    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 assembly languages, …

  8. John Mauchly | Biography, Computer, & Facts | Britannica

    John Mauchly (born August 30, 1907, Cincinnati, Ohio, U.S.—died January 8, 1980, Ambler, Pennsylvania) was an American physicist and engineer, co-inventor in 1946, with John P. Eckert, of …

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

    6 days ago · The first computer to exceed 1,000 TFLOPS, or 1 petaflop, was built by IBM in 2008. Known as Roadrunner, for New Mexico’s state bird, the machine was first tested at IBM’s facilities in …

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

    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 harmful code.