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327:
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28.

What is instruction cycle ? Explain.
What do you mean by mapping of instruction ? Explain

Explain priority interrupt.

D 90138

(4 x 4= 16 marks)

Section C

Answer at least four questions.

Each question carries 7 marks.

All questions can be attended.
Overall ceiling 28.

Describe the functions of encoders with example.

What do you mean by ‏ہے‎ of counter ? Explain.

What are Demultiplexers ? Explain its purpose.

What do you mean by serial shifting ? Explain.

Give a brief account on stored program organization.

Explain the differences between hardwired control and micro programmed control.
Give an outline on ‏سے‎ register organization.

What is DMA ? Explain how it is organized.

(4 x 7 = 28 marks)

Section D

Answer any two questions.
Each question carries 13 marks.

Explain 3-to-8-line decoder in brief with necessary logic diagram.

What is a flip-flop ? Show the logic for implementing R-S flip-flop having active-High R and S

inputs. Draw its truth table and mark the invalid entry.
What is an instruction cycle ? Explain the different steps in instruction cycle.
Explain different types of addressing modes with illustration.

Explain the organization of associative memory.

(2 x 13 = 26 marks)