GATE - 2006 | OS | A computer system supports 32-bit virtual addresses as well as 32-bit

GATE - 2006 | OS | A computer system supports 32-bit virtual addresses as well as 32-bit
Posted on 18-02-2022

GATE - 2006 [Operating System]

Question:

A computer system supports 32-bit virtual addresses as well as 32-bit physical addresses. Since the virtual address space is of the same size as the physical address space, the operating system designers decide to get rid of the virtual memory entirely. Which one of the following is true?

A

Efficient implementation of multi-user support is no longer possible

B

The processor cache organization can be made more efficient now

C

Hardware support for memory management is no longer needed

D

CPU scheduling can be made more efficient now

   

Solution:

Option (C) is Correct.

→ When designer decides to get rid of virtual memory entirely then hardware support is no longer needed.
→ Because special hardware support needed only for virtual memory.

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