Computer | Definition, History, Operating Systems, & Facts
2024年12月20日 · A computer is a programmable device for processing, storing, and displaying information. Learn more in this article about modern digital electronic computers and their …
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 …
Computer - History, Technology, Innovation | Britannica
2024年12月20日 · Computer - History, Technology, Innovation: A computer might be described with deceptive simplicity as “an apparatus that performs routine calculations automatically.” …
Computer - Technology, Invention, History | Britannica
2024年12月20日 · 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, …
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.
Computer science | Definition, Types, & Facts | Britannica
2024年11月20日 · Computer science, the study of computers and computing, including their theoretical and algorithmic foundations, hardware and software, and their uses for processing …
Personal computer (PC) | Definition, History, & Facts | Britannica
2025年1月6日 · 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 …
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 …
computer - Students | Britannica Kids | Homework Help
Computers have proved to be valuable educational tools. Computer-assisted instruction (CAI) uses computerized lessons that range from simple drills and practice sessions to complex …
Computer - Memory, Storage, Processing | Britannica
2024年12月20日 · 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 …