JSS2 Computer Studies Lesson Note on Function of the Operating System

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TOPIC:          OPERATING SYSTEM

CONTENT

Function of the Operating System

1. Resource Allocation: operating system allocates computer resources such as CPU time, main memory (RAM), secondary storage and input and output devices for use.
2. File Management: It helps in the transfer of file from one storage devices to another. It also allows all files to be easily changed and modified through the use of text editors or some other file manipulating software.
3. Memory Management: It allows the allocation of the main memory and other storage areas to the system programs as well as user programs and data.
4. It Interprets commands and instructions
5. It coordinates and assigns compilers, assemblers, utility programs and other software to the various users of the computer system.
6. System Monitoring: Operating system monitors jobs submitted for executions to ensure efficient processing.
7. Input/output management: it assigns different input and output device while one or more programs are being executed.
8. It facilitates easy communication between the computer system and the computer operator.
9. It performs automatic transition from job to job as directed by special control statement.

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