 Obligations of computer operators are to oversee the operation of computer hardware systems. It is to ensure that these machines are used as efficiently and securely as possible. They can work with mainframes, minicomputers or networks of personal computers. Computer operators must take preventive action at problems as well as solve problems that occur during operations.
Duties of computer operators differ. It depends on the size of the installation, the type of equipment used and the policies of the employer. Usually, operators control the console of either a mainframe digital computer or a group of minicomputers. Computer operators set controls on the computer. They are working from operating instructions prepared by programmers, users or operations managers. Also they are working on peripheral devices required to run a particular job.
Nowadays the number and complexity of computer networks continue to grow. In this case greater numbers of computer operators are working on personal computers (PCs) and minicomputers. In many offices, factories, and other work settings, PCs and minicomputers are connected in networks. Often they are referred to local area networks (LANs) or multi-user systems. In case users in the area operate some of these computers, many require the services of full-time operators. The tasks performed on PCs and minicomputers are very simple. This includes trying to keep computer networks secure in the face of a increasing number of cyber-attacks.
Organizations continue to look for opportunities to increase productivity. In this situation automation is expanding into additional areas of computer operations. Sophisticated software, coupled with robotics, enables a computer perform a lot of routine tasks formerly done by computer operators. Scheduling, loading and downloading programs, mounting tapes, rerouting messages and running periodic reports can be done without the intervention of an operator. The responsibilities of many computer operators are shifting to areas. It is such as network operations, user support and database maintenance.
Training and Other Qualifications
As usual, computer operators receive on-the-job training. This is in order to become acquainted with their  employers' equipment and routines. The time of training depends on the job and the experience of the worker. Previous work experience is the key to obtaining an operator job in many large establishments. In general employers look for specific, hands-on experience with the type of equipment. It must be related with the operating systems they use. Employers will increasingly require candidates to have formal training and experience for operator jobs. It is because computer technology changes and data processing centers become more automated. Bachelor's degree in a computer field can be helpful. It is in case one is seeking employment as a computer operator or advancement to a managerial position.
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