Computer operators must anticipate problems and take preventive action, as well as solve problems that occur during operations. The duties of computer operators vary with the size of the installation, the type of equipment used, and the policies of the employer. Generally, operators control the console of either a mainframe digital computer or a group of minicomputers. Working from operating instructions prepared by programmers, users, or operations managers, computer operators set controls on the computer and on peripheral devices required to run a particular job. Computer operators load equipment with tapes, disks, and paper, as needed.
Messages indicate the individual specifications of each job being run.
If an error message occurs, operators must locate and solve the problem or terminate the program. Operators also maintain logbooks or operating records, listing each job that is run and events such as machine malfunctions that occur during their shift. In addition, computer operators may help programmers and systems analysts test and debug new programs. Whereas users in the area operate some of these computers, many require the services of full-time operators. The tasks performed are very similar to those performed on large computers.