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Definition: operator

(1) An organization that provides communications services. See network operator.

(2) In programming, a symbol used to perform an arithmetic or logical operation. See arithmetic operator and Boolean operator.

(3) A person who operates a computer in a datacenter and performs such activities as commanding the operating system, mounting disks and tapes and placing paper in the printer. Operators may also write the job control language (JCL), which schedules the daily work for the computer. See system development life cycle, job descriptions and salary survey.