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Q.

...... 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

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MCQ

1.

A section of code that may only be executed by one process at any one time is

A

CPM

B

Critical resource

C

Critical region

D

Gray code

E

None of the above

Discussion

MCQ

2.

Generally quick launch toolbar is displayed on

A

the left side of taskbar

B

the right side of taskbar

C

on the middle of taskbar

D

a bar out of taskbar

Discussion

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3.

Which of the following resources must be protected by the operating system?

A

I/O

B

Memory

C

CPU

D

All of the above

Discussion

MCQ

4.

Swapping

A

works best with many small partitions

B

allows many programs to use memory simultaneously

C

allows each program in turn to use the memory

D

does not work with overlaying

E

None of the above

Discussion

MCQ

5.

What should be the extension to execute files?

A

EXE

B

BAT

C

COM

D

All of the above

Discussion

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