GATE | GATE CS 1999 | Question 9

Listed below are some operating system abstractions (in the left column) and the hardware components or mechanism (in the right column) that they are abstractions of. Which of the following matching of pairs is correct?

A. Thread                      1. Interrupt
B. Virtual address space       2. Memory
C. File system                 3. CPU
D. Signal                      4. Disk

(A) A-2, B-4, C-3, D-1
(B) A-1, B-2, C-3, D-4
(C) A-3, B-2, C-4, D-1
(D) A-4, B-1, C-2, D-3


Answer: (C)

Explanation:

  1. Thread is handled by CPU.
  2. Virtual address space (it is a set of virtual memory addresses that a process can use) is associated with memory management.
  3. File System is used for disk management.
  4. Interrupt is a type of signal.


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