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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 design, constituent parts, and applications as well as about the history of computing.
What is a computer? - 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 algorithms, and displaying information.
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.”
Computer - Technology, Invention, History | Britannica
Jun 16, 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 being able to automate routine calculations were appreciated, as they had not been a …
Personal computer (PC) | Definition, History, & Facts | Britannica
2 days ago · personal computer (PC), a digital computer designed for use by only one person at a time.
Computer science | Definition, Types, & Facts | Britannica
4 days ago · Computer science is the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information.
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).
Computer network | Definition & Types | Britannica
A computer network consists of two or more computers that are connected to each other to communicate data electronically. Two basic network types are local area networks (LANs) and wide area networks (WANs).
Mainframe | Definition & Facts | Britannica
Mainframe, digital computer designed for high-speed data processing with heavy use of input/output units such as large-capacity disks and printers. Mainframes have been used for such applications as payroll computations, accounting, business …
Microcomputer | Definition, Examples, Uses, & Facts | Britannica
During the 1980s microcomputers came to be used widely in other applications besides electronic game systems and other relatively simple computer-based recreations. Increasingly powerful microcomputers began to be used in personal computer systems and workstations, for instance.