Tamil Nadu Open University (TNOU) 2009-2nd Sem M.C.A - - Digital logic and computer organisation (old regulations) -- IX - Question Paper
M.C.A. DEGREE exam - 2009
(SECOND SEMESTER)
(PAPER – IX)
220. DIGITAL LOGIC AND COMPUTER ORGANIZATION
(Old Regulations)
Dec.) (Time: three Hours
Maximum: 100 Marks
ans any 5 ques.. (5 × 20 = 100)
1.(a) (i) Convert the subsequent number to binary equivalent.
(a) 4FA . one D16 (b)721.458 (5)
(ii) Write down the 8421 BCD equivalent code for the subsequent numbers,
(a) 84510; (b) 37701 (c) 76610 (5)
(b) Differentiate ranging from a decorder and a demultiplexer. (10)
2.(a) Design a combinational circuit to convert a 8-4-2-1 code to excess – three code. (10)
(b) discuss the working of T flip-flops. (10)
3.(a) discuss the various functional parts in a digital computer. (10)
(b) Distinguish ranging from static and dynamic memories. (10)
4.(a) What is subroutine? explain the various parameter passing methods. (10)
(b) discuss in detail about stacks and queues and their operations. (10)
5.(a) Draw the diagram for micro-programmed control unit and provide its advantages and
disadvantages. (10)
(b) provide a detailed note on micro-instruction format. (10)
6.(a) Draw and discuss the typical hardware control unit. (10)
(b) explain in detail about addresses and encoding of info. (10)
7.(a) With neat diagram, discuss the working principles of DMA. (10)
(b) discuss about I/o hardware in detail. (10)
8.(a) explain the various I/o devices. (10)
(b) What is interrupts? discuss the different kinds of interrupt and how to handle if. (10)
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Total No. of Pages: 1
Register Number: 6944
Name of the
Candidate:
M.C.A. DEGREE EXAMINATION - 2009
(second SEMESTER)
(paper Ix)
220. digital logic and computer
organisation
(Old Regulations)
Dec.) (Time: 3 Hours
Maximum: 100 Marks
Answer any FIVE questions.
(5 20 = 100)
|
1. |
(a) (i) Convert the following number to binary equivalent. (a) 4FA . 1 D16 (b) 721.458 (5) (ii) Write down the 8421 BCD equivalent code for the following numbers, (a) 84510; (b) 37701 (c) 76610 (5) (b) Differentiate between a decorder and a demultiplexer. (10) |
|
2. |
(a) Design a combinational circuit to convert a 8-4-2-1 code to excess 3 code. (10) (b) Explain the working of T flip-flops. (10) |
|
3. |
(a) Explain the different functional parts in a digital computer. (10) (b) Distinguish between static and dynamic memories. (10) |
|
4. |
(a) What is subroutine? Discuss the different parameter passing methods. (10) (b) Explain in detail about stacks and queues and their operations. (10) |
|
5. |
(a) Draw the diagram for micro-programmed control unit and give
its advantages and (b) Give a detailed note on micro-instruction format. (10) |
|
6. |
(a) Draw and explain the typical hardware control unit. (10) (b) Discuss in detail about addresses and encoding of information. (10) |
|
7. |
(a) With neat diagram, explain the working principles of DMA. (10) (b) Explain about I/o hardware in detail. (10) |
|
8. |
(a) Discuss the different I/o devices. (10) (b) What is interrupts? Explain the various types of interrupt and how to handle if. (10) |
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| Earning: Approval pending. |
