Digital Electronics Previous Year Question Paper 2013-14
B.Sc. (IT) Third
Semester Examination, 2013-14
Digital Electronics
Paper ID 200011
Time: Three Hours]
[Max.Marks:70
Note:
Attempt any five questions. All questions carry equal marks.
1. (i)
Convert the decimal number 35.25 into binary, octal and
Hexadecimal number system.
(ii) Explain the
working of full adder and make the circuit
diagram using NAND gates.
2. What do you mean by multiplexer.
Explain and design 8:1
multiplexer. Also write the uses of
multiplexer.
3. Design a modulo 16 asynchronous
counter using T flip-flop.
4. What do you understand by DMA mode of
data transfer?
explain Bus request, Bus grant
and burst transfer with reference to DMA.
5. Write short note on the following for
Asynchronous data transfer:
(i)
Strobe
Control method
(ii)
Handshaking
method
6. Explain Hierarchy of memory. Also
write major difference between
Ram and ROM.
7. Briefly explain the following terms
a) Fetch and execute cycle
b) Organization of central processing
Unit
c) Stack Organization
Note: Attempt any five questions. All questions carry equal marks.
