
Computer | Definition, History, Operating Systems, & Facts | Britannica
Mar 20, 2026 · 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 …
Computer - History, Technology, Innovation | Britannica
Mar 20, 2026 · Computer - History, Technology, Innovation: How did the abacus lead to modern computers? The earliest known calculating device is the abacus, dating back to at least 1100 BCE …
Computer - Technology, Invention, History | Britannica
Mar 20, 2026 · 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 …
Computer science | Definition, Types, & Facts | Britannica
Mar 26, 2026 · 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 …
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 …
Personal computer (PC) | Definition, History, & Facts | Britannica
Mar 24, 2026 · 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 …
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 …
Alan Turing | Biography, Facts, Computer, Machine, Education, & Death ...
Feb 27, 2026 · Alan Turing was a British mathematician and logician, a major contributor to mathematics, cryptanalysis, computer science, and artificial intelligence. He invented the universal …
Computer program | Definition & Facts | Britannica
Mar 19, 2026 · Computer program, detailed plan or procedure for solving a problem with a computer; specifically, an unambiguous, ordered sequence of computational instructions necessary to achieve …
Computer science - Algorithms, Complexity, Programming | Britannica
Mar 26, 2026 · Computer science - Algorithms, Complexity, Programming: An algorithm is a specific procedure for solving a well-defined computational problem. The development and analysis of …
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