If a CPU has 20 address lines but MMU does not use two of them. OS occupies 20K. No virtual memory is supported. What is the maximum memory available for a user program?

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kapil

  • Nov 27th, 2006
 

if cpu has 20 adr lines

bt mmu supports only 18

so total memory=(2)18=2GB

or memory for use=2GB-20KB

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