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Network

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OCR

Optical Character Recognition. Automatic scanning the translation of printed characters to computer-based text.

Operating System

The underlying system software which enables a computer to operate. Common operating systems include DOS, Windows, and Macintosh System 7x.

Operator

A character used to limit or broaden a search. Operators such as and, or, and not are referred to as a 'Boolean operator.

Optical Disk

A computer storage disk used solely for large quantities (Gbs) of data.

OSI

Open Systems Interconnect. The standard reference model for local area network (LAN) systems.