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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
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 Specific methods to make automated calculation more practical, such as
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 Computers come in many different shapes and sizes, from handheld smartphones to supercomputers weighing more than 300 tons
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 In fact, calculation underlies many activities that are not normally thought of as mathematical
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
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 Computers…
computer summary | Britannica computer, Programmable machine that can store, retrieve, and process data 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) Traditional histories of computers assign generations on the basis of technology
Computer science | Definition, Types, Facts | Britannica Computer science is 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
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 reservations, and scientific and engineering computations Mainframe systems, with remote “dumb
Digital computer | Evolution, Components, Features | Britannica Digital computer, any of a class of devices capable of solving problems by processing information in discrete form It operates on data, including magnitudes, letters, and symbols, that are expressed in binary code—that is, using only the two digits 0 and 1