Main purposes of an operating system
• To provide an environment for a computer user to execute programs on computer hardware in a convenient and efficient manner.
• To allocate the separate resources of the computer as needed to solve the problem given. The allocation process should be as fair and efficient as possible.
• As a control program it serves two major functions:
(1) supervision of the execution of user programs to prevent errors and improper use of the computer, and
(2) management of the operation and control of I/O devices.
• To provide an environment for a computer user to execute programs on computer hardware in a convenient and efficient manner.
• To allocate the separate resources of the computer as needed to solve the problem given. The allocation process should be as fair and efficient as possible.
• As a control program it serves two major functions:
(1) supervision of the execution of user programs to prevent errors and improper use of the computer, and
(2) management of the operation and control of I/O devices.
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