1. In the instruction ADD A, B, the answer gets stored in
2. What does PC stand for?
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program changer
program counter
performance counter
3. Which of the following holds the last instruction fetched?
4. The portion of the processor which contains the hardware required to fetch the operations is
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datapath
processor
control
5. The backing store is generally a
-
fast disk
disk large enough to accommodate copies of all memory images for all users
disk to provide direct access to the memory images
6. When the head damages the magnetic surface, it is known as
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disk crash
head crash
magnetic damage
7. The process to be aborted is chosen on the basis of the following factors?
- priority of the process
process is interactive or batch
how long the process has computed
8. What is the disk bandwidth?
-
the total number of bytes transferred
total time between the first request for service and the completion on the last transfer
the total number of bytes transferred divided by the total time between the first request for service and the completion on the last transfer
9. The primary distinction between the short term scheduler and the long term scheduler is :
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The length of their queues
The type of processes they schedule
The frequency of their execution
10. Which of the following Is not a part of the operating system?
-
Input/output control program
Job control program
Supervisor
11. The number of sign bits in a 32-bit IEEE format is
12. The transfer between CPU and Cache is
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block transfer
word transfer
set transfer
13. Computer has a built-in system clock that emits millions of regularly spaced electric pulses per called clock cycles.
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second
millisecond
microsecond
14. What is thrashing?
15. Magnetic tape drives can write data at a speed disk drives.
16. Which types of file organization are supported by Magnetic Tape?
17. Which of the following is not a popular desktop operating system?
18. In UNIX, the system call is used to send a signal.
19. Windows operating system follows __________ type of kernel architecture
20. What is interprocess communication?
21. Thread pools are useful when
22. Resource sharing helps
23. The kernel is of user threads.
24. Because the kernel thread management is done by the Operating System itself
25. If a kernel thread performs a blocking system call,
26. FCFS algorithm is used by
27. The macro process must perform
28. The memory implemented using the semiconductor chips is
29. Which of the following is the fastest means of memory access for CPU?
30. A process in general needs certain recourses
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