computer organization and architecture

21. Processor needs software interrupt to
Processor software interrupt क्यों use करता है?
(CGPSC 2020)
A. Return from subroutine
B. Implement routines
C. Test interrupt system
D. Obtain system services

Correct Answer: D

Explanation (EN): Software interrupt used for system calls.

Explanation (HI): Software interrupt system services के लिए use होता है.

22. Software interrupt is
Software interrupt क्या होता है?
(CGPSC 2020)
A. Stimulate external device
B. Generated by external device
C. Both
D. None

Correct Answer: A

Explanation (EN): Software interrupt generated by program.

Explanation (HI): Software interrupt program द्वारा generate होता है.

23. According to Amdahl law if 5 percent is sequential what is speedup?
Amdahl law के अनुसार speedup कितना होगा?
(UGC NET 2017)
A. Infinite
B. 20
C. 50
D. 100

Correct Answer: B

Explanation (EN): Speedup = 1/0.05 = 20.

Explanation (HI): Speedup 20 होता है.