Bharathiar University 2009 B.C.A Computer Application Digital Fundamentals and Architecture,Bharathiyar University - Question Paper

a. Page
b. Segment
c. DMA
d. None
1.0 Mark(s)
11. a. Draw the circuit of a Half Adder and provide its truth table.

Or

b. Implement using fundamental gates.

5.0 Mark(s)
12. a. Draw the circuit of a two x four decoder.

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b. State and prove DeMorgan's theorems.
5.0 Mark(s)
13. a. discuss the Rotate instructions of 8085.

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b. What is multiplexing with respect to 8085?
5.0 Mark(s)
14. a. What is isolated I/O?

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b. discuss the interrupt mechanism.
5.0 Mark(s)
15. a. What is content addressable memory? discuss.

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b. discuss any 1 page replacement algorithm.
5.0 Mark(s)
16. a. Subtract 12 from 42 by using 1's complement and 2's complement methods.

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b. Draw the circuit of a parallel binary adder and discuss its working.
8.0 Mark(s)
17. a. Simplify using Karnaugh map and implement using fundamental gates.
Q(A, B, C, D) = ?m(0, 1, 2, 5, 7, 9, 10, 11, 13, 14).

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b. discuss the functioning of a multiplexer with diagram.
8.0 Mark(s)
18. a. explain the internal architecture of 8085 with block diagram.

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b. explain the arithmetic instructions of 8085 with examples.
8.0 Mark(s)
19. a. What is meant by asynchronous data transfer? discuss.

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b. explain the parallel priority method of assigning priority to interrupts.
8.0 Mark(s)
20. a. discuss the match logic of associative memory.

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b. explain the cache memory concept with a diagram. What is its need?
8.0 Mark(s)

Earning:   Approval pending.