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

    Dec 2, 2025 · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …

  2. Computer science and its application in various fields | Britannica

    computer science, Study of computers, their design (see computer architecture), and their uses for computation, data processing, and systems control, including design and development of …

  3. 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 …

  4. Computer science Definition & Meaning | Britannica Dictionary

    1 ENTRIES FOUND: computer science (noun) computer science noun Britannica Dictionary definition of COMPUTER SCIENCE [noncount] : the study of computers and their uses

  5. HTML | Definition & Facts | Britannica

    Nov 7, 2025 · Any service offered over the Internet, by definition, is a form of Web application. Examples of Web applications therefore include online forms, shopping carts, video streaming, …

  6. Firewall | Definition, Types, & Facts | Britannica

    Nov 1, 2025 · Firewall, type of system used to monitor connections between computer networks. One of the earliest responses to malicious activity perpetrated through the Internet, firewalls …

  7. 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 …

  8. RAM | Definition, Types, & Facts | Britannica

    Nov 11, 2025 · Computer memory is divided into main (or primary) memory and auxiliary (or secondary) memory. Main memory holds instructions and data when a program is executing, …

  9. Computer - History, Technology, Innovation | Britannica

    Oct 17, 2025 · A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.” Such a definition would owe its deceptiveness to …

  10. Computer simulation | Definition & Facts | Britannica

    Computer simulation, the use of a computer to represent the dynamic responses of one system by the behavior of another system modeled after it. A simulation uses a mathematical description, …