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Computer | Definition, History, Operating Systems, & Facts | Britannica
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 - Encyclopedia 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
Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.” Such a definition would owe its deceptiveness to a naive and narrow view of calculation as a strictly mathematical process.

Computer - Technology, Invention, History | Britannica
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. First, the potential benefits to science and industry of being able to automate routine calculations were appreciated, as they had not been a century earlier.

computer - Kids | Britannica Kids | Homework Help
A computer is a device for working with information. The information can be numbers, words, pictures, movies, or sounds. Computer information is also called data.

Computer science | Definition, Types, & Facts | Britannica
Computer science, the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing information. The discipline of computer science includes the study of algorithms and data structures and artificial intelligence.

computer - Students | Britannica Kids | Homework Help
Computers have proved to be valuable educational tools. Computer-assisted instruction (CAI) uses computerized lessons that range from simple drills and practice sessions to complex interactive tutorials.

Personal computer (PC) | Definition, History, & Facts | Britannica
Personal computer, a digital computer designed for use by only one person at a time. 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; computer memory; and various peripheral devices.

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 transactions, information retrieval, airline seat

Computer - Home Use, Microprocessors, Software | Britannica
Computer - Home Use, Microprocessors, Software: Before 1970, computers were big machines requiring thousands of separate transistors. They were operated by specialized technicians, who often dressed in white lab coats and were commonly referred to as a computer priesthood.

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