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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 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
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 - 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 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)
list of notable computer viruses and malware - Encyclopedia Britannica Malware (a portmanteau of the terms malicious and software) consists of computer viruses, spyware, computer worms, and other software capable of stealing devices’ data or running harmful code Cybercriminals use malware to extort money, steal personal information, and spy on their victims
Computer - Supercomputing, Processing, Speed | Britannica Computer hardware The physical elements of a computer, its hardware, are generally divided into the central processing unit (CPU), main memory (or random-access memory, RAM), and peripherals