What is an Operating System ? Write functions of it.
An operating system is a program on which application programs are executed and acts as an communication bridge (interface) between the user and the computer hardware.
functions of an operating System
1 Security
2. Control over system performance
3. Job accounting
4. Error detecting aids
5. Coordination between other software and users
6. Memory Management
7. Processor Management
8. Device Management
9. File Management
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Computer