...... runs on a computer hardware and serves as a platform for other system to run on

A. Operating system

B. Application system

C. System software

D. All of above

Answer: Option A

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Related Questions on Operating System

Identify false statement

A. You can find deleted files in recycle bin

B. You can restore any files in recycle bin if you ever need

C. You can increase free space of disk by sending files in recycle bin

D. You can right click and choose Empty Recycle Bin to clean it at once