Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A role within IT, computer operators oversee the running of computer systems, ensuring that the machines are running and physically secured. The traditional role of a computer operator was to work with mainframes which required a great deal of management day-to-day. Computer operator positions are distinct from system administrators in that they only require a 2-year college Associate's degree (similar to nuclear power plant operators and car mechanics), and are paid significantly less than system administrators, and traditionally used operating systems other than UNIX before the 1990s with far more rudimentary operations than a complex UNIX system. The computer operator works in a computer room (now days known as "data centers"). The employment of operators has greatly decreased due to modern technology making the more traditional roles obsolete. Most of the duties that operations staff undertake is taught on-the-job as the variety of roles is unique to the systems they help manage.

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