What is the size of the reserved memory area?

A. 64 kb

B. 384 kb

C. 640 kb

D. 1024 kb

E. None of the above

Answer: Option B

Solution(By Examveda Team)

In DOS memory management, the upper memory area (UMA) refers to memory between the addresses of 640 KB and 1024 KB (0xA0000–0xFFFFF) in an IBM PC or compatible. IBM reserved the uppermost 384 KB of the 8088 CPU's 1024 KB address space for ROM, RAM on peripherals, and memory-mapped input/output.

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Comments ( 2 )

  1. Zishan Ali
    Zishan Ali :
    5 years ago

    sir plz can u give me correct answer?

  2. Zishan Ali
    Zishan Ali :
    5 years ago

    the size of reserver memory area is 640kb not 384kb

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