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A computer system with 16K of memory, a Memory Management Unit with a page size

ID: 3690529 • Letter: A

Question

A computer system with 16K of memory, a Memory Management Unit with a page size of 2000, and the following page translation table (all numbers in hexadecimal):

   

Logical Address

Physical Start

0000

10000

2000

1F200

4000

2CC00

6000

22400

8000

30300

A000

41600

C000

81E00

E000

3F500

a. Indicate the physical memory location corresponding to logical address A410.


b. Indicate the logical address corresponding to physical memory location 10F01.

Logical Address

Physical Start

0000

10000

2000

1F200

4000

2CC00

6000

22400

8000

30300

A000

41600

C000

81E00

E000

3F500

Explanation / Answer

It is a simple case of matching...

a. 8050 lies in the row of "8000"

    =>the physical address is 30300+50=30350

b.23123 lies in the row of physical address "22000"

   =>the logical address is 6000+(23123-22000)=6000+1123=7123

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