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A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations. Learn about the etymology, history, types and functions of computers, from ancient devices to modern digital electronic computers.
Computing is any activity involving computing machinery, such as computers, algorithms, and software. Learn about the history of computing, from abaci to transistors, and the major disciplines and fields of computing, such as computer science, cybersecurity, and data science.
A personal computer, or PC, is a computer designed for individual use, such as word processing, internet browsing, email, multimedia playback, and gaming. Learn about the origin, evolution and usage of the term PC, as well as the different platforms and operating systems that compete in the market.
Information technology (IT) is a set of related fields that encompass computer systems, software, programming languages, and data and information processing, and storage. IT forms part of information and communications technology (ICT) and has a history of development from ancient devices to modern computers.
The Internet is the global system of interconnected computer networks that uses the Internet protocol suite to communicate and share information resources and services. Learn about the origins, development, and features of the Internet, as well as its impact on communication, media, and society.
Technology is the application of knowledge to achieve practical goals, and can include tools, machines, software, and more. Learn about the origins and evolution of technology, from prehistoric times to the present, and the different categories and impacts of technological innovations.
A computer network is a set of computers sharing resources located on or provided by network nodes. Learn about the history, types, features, applications, and metrics of computer networks from this comprehensive encyclopedia article.
Computer science is the study of computation, information, and automation. Learn about its fundamental areas, history, pioneers, and applications from this comprehensive encyclopedia article.