JAMIA 2026 — Computer PYQ
JAMIA | Computer | 2026What is the main purpose of virtual memory?
Choose the correct answer:
- A.
To increase CPU speed
- B.
To replace RAM by Cache
- C.
To increase RAM size logically
(Correct Answer) - D.
To reduce the uses of registers
To increase RAM size logically
Explanation
Correct Answer: (c) To increase RAM size logically
Detailed Explanation
As shown in image_8daf7a.png, the question asks about the primary objective of implementing virtual memory in a computer system.
Virtual Memory Concept: Virtual memory is a memory management technique used by operating systems that maps virtual addresses used by an application into physical addresses in computer memory. It combines the active physical RAM with non-volatile secondary storage space (such as a hard drive swap partition or an SSD page file).
Logical Expansion: The ultimate purpose is to simulate more primary storage than is physically available on the hardware. This logically increases the total storage layout available for programs to execute:
Total Logical Address Space=Physical RAM+Secondary Memory Space (Swap/Page File)
Benefits: It permits large processes that exceed the capacity of physical RAM to run without throwing an "out of memory" fault, allowing multiprogramming systems to smoothly allocate resources across multiple active tasks.