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Some of the following questions are based
on the Main-memory Map as depicted above.
(a) What is the word size of main memory? Explain your answer. [2]
(b) There are various criteria to gauge performance of memory components,
two
examples are Transfer rate and Memory cycle time. What is the third
performance
criterion and how does it differ for random-access and non-random-access
memory types? [3]
(c) Given this assembly instruction: MOV AX, @1750
(i) Identify the instruction format. [1]
(ii) Identify the addressing technique. [1]
(iii) Write the steps of the execute-cycle. [3]
(d) With the aid of a diagram, explain how in Virtual-memory, a page
is loaded from secondary memory to a main-memory location. Your answer
should include
explanations of the terms Page Fault, Demand Paging, and Page Table.
[5]
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