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A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations ( computation ). Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. The term computer system may refer to a nominally ...
Terminology. The term "PC" is an initialism for "personal computer". While the IBM Personal Computer incorporated the designation into its model name, the term originally described personal computers of any brand.
PDP-11 CPU board. Computer hardware comprises the physical parts of a computer, such as the central processing unit (CPU), random access memory (RAM), motherboard, computer data storage, graphics card, sound card, and computer case.
Clockwise from top left: A 2021 MacBook Pro by Apple Inc.; a 2019 Microsoft Surface Pro 7 with detachable hinge (left) and a 2018 Dell XPS 15 9570 with 360 degree hinge (right); a 2014 ThinkPad Helix by Lenovo with detachable screen; and a 2014 Acer Chromebook 11
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one ...
Home computer. This article is primarily about a certain class of personal computers from the late 1970s to mid-1980s. See home server and home automation or desktop computer for other uses of a computer in a home. Children playing Paperboy on an Amstrad CPC 464 in 1988. The often sprawling nature of a well-outfitted home computer is evident ...
Computer programming or coding is the composition of sequences of instructions, called programs, that computers can follow to perform tasks. [1] [2] It involves designing and implementing algorithms, step-by-step specifications of procedures, by writing code in one or more programming languages. Programmers typically use high-level programming ...
Computer vision is an interdisciplinary field that deals with how computers can be made to gain high-level understanding from digital images or videos. From the perspective of engineering, it seeks to automate tasks that the human visual system can do.