Function of operating system (OS)

 Function of operating system:

1. Supervisor of overall operating

2. Support/manage/control the program.

3. Loaded program.

4. manage input/output operating.

5. file management.

6. Interpreter

7. memory management

8. user interface

9. program management

10. disk management (configure, format)

11. resource management

12. Job scheduling (FIFO)

13. Provide plate form for apps

BOOTING: When we start our computer then there is an operation which is performed automatically by the computer which is also called as booting. (जब हामी हाम्रो कम्प्युटर सुरू गर्छौं तब त्यहाँ एउटा अपरेशन हुन्छ जुन स्वचालित रूपमा कम्प्युटरले प्रदर्शन गर्दछ त्यसलाई booting भनिन्छ।

➧ The process of loading operating system/ process of copy the system file in memory from storage device/ ROM.

Types of Booting: Warm and Cold Booting

1. Warm Booting: 

➧ Restart / Press Alt+Ctrl+Del key / reload the OS.

➧ Restart the computer by supply power.

2. Cold Booting:

➧ Press power button/ first time load OS, switch on/off.

ROM BIOS (Read Only Memory Basic Input Output System):

➧ ROM BIOS is program of ROM chip.

➧ Also called micro program.

➧ Stored program in ROM is known as firmware.