Microsoft Corp. summary

Written and fact-checked by The Editors of Encyclopaedia Britannica

Below is the article summary. For the full article, see Microsoft Corporation.

Microsoft Corp., U.S. computer firm, the leading developer of personal-computer software systems and applications. Microsoft, headquartered in Redmond, Wash., also publishes books and multimedia titles and manufactures hardware. It was founded in 1975 by Bill Gates and Paul G. Allen (b. 1954), who adapted BASIC for use on personal computers. They licensed versions of it to various companies, developed other programming languages, and in 1981 released MS-DOS for the IBM PC. The subsequent adoption of MS-DOS by most other personal-computer manufacturers generated vast revenues for Microsoft, which became a publicly owned corporation in 1986. It issued the first version of Microsoft Word, its popular word-processing program, in 1983, and Microsoft Windows, a graphical user interface for MS-DOS-based computers, in 1985. In 2001 Microsoft released Xbox, a video game console that quickly captured second place in the $10 billion video gaming market. In 2002 Microsoft launched Xbox Live, a broadband gaming network for their consoles.

National Broadcasting Co., Inc. Summary

National Broadcasting Co., Inc. (NBC), major American commercial broadcasting company, since 2004 the television component of NBCUniversal, which is owned by the Comcast Corporation. The oldest broadcasting network in the United States, the National Broadcasting Company (NBC) came into being on

Exterior view of a Verizon cell phone store.

Internet service provider Summary

Internet service provider (ISP), company that provides Internet connections and services to individuals and organizations. ISPs may also provide software packages (such as browsers), e-mail accounts, and a personal website or home page. ISPs can host websites for businesses and can also build the

operating system Summary

Operating system (OS), program that manages a computer’s resources, especially the allocation of those resources among other programs. Typical resources include the central processing unit (CPU), computer memory, file storage, input/output (I/O) devices, and network connections. Management tasks

personal computer Summary

Personal computer (PC), a digital computer designed for use by only one person at a time. A typical personal computer assemblage consists of a central processing unit (CPU), which contains the computer’s arithmetic, logic, and control circuitry on an integrated circuit; two types of computer