Download SGBAU BCA 2019 Summer 2nd Sem Digital Techniques II Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BCA 2019 Summer (Bachelor of Computer Applications) 2nd Sem Digital Techniques II Previous Question Paper

AW-1795
B.C.A. (Part?I) Semester?II Examination
ZST3 : DIGITAL TECHNIQUES?Il
Time : Three Hours] [Maximum Marks : 60
Note :? (1) All questions are compulsory.
(2) Draw neat diagrams wherever necessary.
(3) Due credit will be given to neatness.
1. (A) What is D-Flip-Flop ? Explain with Diagram and Truth Table. 6
(B) Explain construction and working of astablc multivibrator with suitable diagram. 6
OR
2. (A) De?ne Flip-Flop and differentiate RS and CLKRS F lip-F lop. 6
(B) Explain :
(1) Monostable transistori7ed multivibrator
(ii) Bistable transistorized multivibrator. 6
3. (A) What is Counter ? Explain Asynchronous 4-bit Counter with Diagram and Truth Table.
6
(B) Explain up-down counters with suitable diagram. 6
OR
4. (A) State and explain applications of Modi?ed Asynchronous Counter. 6
(B) Draw and explain the diagram of [C 74931. 6
5. (A) Explain :
G) SISO
(ii) PISO. 6
(B) Explain IC version of Shift register-7495 with connection diagram. 6
0R
6. (A) Explain the working of Ring Counter with neat diagram. 6
(B) What is Johnson?s Counter ? Explain with Connection Diagram and Truth Table. 6
7. (A) Explain diiTerence between Primary and Secondary Memory. 6
(B) Explain :
(1) RAM
(ii) ROM
(iii) EPROM. 6
0R
8. (A) Explain static RAM Cell with suitable diagram. 6
(B) What is meant by Winchester disk ? Explain. 6
9. (A) What is A/D and D/A converter ? Explain the working of weighted resistor type
D/A Converter. 6
(B) Draw and explain IC ADC 0808 with block diagram. 6
OR
10. (A) Draw and explain IC DAC 0808 with suitable diagram. 6
(B) Draw the block diagram of successive approximation type A/D Converter and explain. 6
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