operating system set 3 Detailed Explanation And More Example

Question : 1

Which of the following is not an address register?

a) Index register

b) Segment pointer

c) Stack pointer

d) Data register.

Question : 2

Instruction register contains

a) The address of an instruction to be fetched.

b) The instructions most recently fetched.

c) The data to be written into memory.

d) The data to be read from memory.

Question : 3

For multithreading

a) Tasks to be performed can be independent

b) Task to be performed is essentially serialized.

c) Tasks cannot be divided into number of threads.

d) None is true.

Question : 4

Multiprocessing models have

a) symmetric multiprocessing model

b) asymmetric multiprocessing model

c) both (A) and (B) above

d) None of these

Question : 5

Match the following I/O devices : A- Keyboard, 1- Human readable, B- Disk and tape drives, 2- Communication, C- Modems, 3-Machine readable

a) A - 1, B - 3, C - 2

b) A - 1, B - 2, C - 3

c) A - 3, B - 2, C - 1

d) A - 2, B - 1, C - 3

Question : 6

In disk storage devices the width of head is:

a) Same of the track

b) More than of the track

c) Less than of the track

d) None is true.