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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
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
computer summary | Britannica Database, any collection of data, or information, that is specially organized for rapid search and retrieval by a computer Databases are structured to facilitate the storage, retrieval, modification, and deletion of data in conjunction with various data-processing operations
Computer - Memory, Storage, Processing | Britannica Computer - Memory, Storage, Processing: The earliest forms of computer main memory were mercury delay lines, which were tubes of mercury that stored data as ultrasonic waves, and cathode-ray tubes, which stored data as charges on the tubes’ screens
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
Graphics processing unit (GPU) | Definition, Applications, History . . . Technology made to render 3-D graphics and video had been used for decades before the GPU was invented The first electronic stored-program computer, the Small Scale Experimental Machine (or, more informally, “Manchester Baby”) was created in 1948 and displayed images with a cathode-ray tube
John Mauchly | Biography, Computer, Facts | Britannica John Mauchly (born August 30, 1907, Cincinnati, Ohio, U S —died January 8, 1980, Ambler, Pennsylvania) was an American physicist and engineer, co-inventor in 1946, with John P Eckert, of the Electronic Numerical Integrator and Computer (ENIAC), the first general-purpose electronic computer
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