Introduction to network security ppt
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Nov 02, 2020 · Information system, an integrated set of components for collecting, storing, and processing data and for providing information and digital products. Many major companies are built entirely around information systems. Learn more about information systems in this article.
Wide Area Network (WAN) A Wide Area Network or WAN is a computer network covering a broad geographical area. Contrast with personal area networks (PAN’s), local area networks (LAN’s) or metropolitan area networks (MAN’s) that are usually limited to a room, building or campus. The largest and most well-known example of a WAN is the Internet.