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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 The history of the solving of these problems is the history of the computer That history is covered in this section, and links are provided to entries on many of the individuals and companies mentioned
Computer - Technology, Invention, History | Britannica The mill was the calculating unit, analogous to the central processing unit (CPU) in a modern computer; the store was where data were held prior to processing, exactly analogous to memory and storage in today’s computers; and the reader and printer were the input and output devices
Charles Babbage | Biography, Computers, Inventions, Facts - Britannica Charles Babbage, English mathematician and inventor who is credited with having conceived the first automatic digital computer He designed two calculating devices, the Difference Engine and the Analytical Engine, neither of which were fully built Learn more about Babbage in this article
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
computer - Kids | Britannica Kids | Homework Help A computer system requires both hardware and software Hardware is the computer’s physical parts Software is the programs, or instructions, that tell the hardware what to do
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
Computer program | Definition Facts | Britannica computer program, detailed plan or procedure for solving a problem with a computer; more specifically, an unambiguous, ordered sequence of computational instructions necessary to achieve such a solution
Ada Lovelace | Biography, Computer, Facts | Britannica Ada Lovelace is considered the first computer programmer Even though she wrote about a computer, the Analytical Engine, that was never built, she realized that the computer could follow a series of simple instructions, a program, to perform a complex calculation