Information systems today are largely computer-based. The principal information technologies related to computers and telecommunications.
Computer: An electronic general-purpose information processor.
Software: Programs that control the operation of a computer system (contrasted with hardware).
Hardware: Physical devices employed in computer systems (contrasted with software).
Telecommunications: Electronic transmission of information over distances; also, the means of this transmission.
Computer Network: A system of computers and telecommunications
Internet: A global network of networks that has become the worldwide information utility.
World Wide Web: Collection of hyper-linked multimedia (text, photos, graphics, voice, moving images) databases stored in computers known as servers all over the world and accessible via the Internet.
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