M.C.A. DEGREE EXAMINATION, 2008 ( SECOND SEMESTER ) ( PAPER - XI )
241. COMPUTER ARCHITECTURE AND MICROPROCESSOR
Maximum : 100 Marks
SECTION - A (8 × 5 = 40)
Answer any EIGHT questions.
All questions carry equal marks.
1. State and prove De Morgans theorems.
2. Write a note on BCD numbers.
3. List out the differences between PROM and EPROM.
4. What do you mean by buffer latches ? - Explain
5. Explain MOV and STORE instructions.
6. Explain the general format of instructions.
7. Define stack. Explain the PUSH and POP operations.
8. Explain the principle and working of 7-segment display.
9. What do you mean by data acquisition system ? - Explain.
10. List out any four applications of microprocessors.
SECTION - B (3 × 20 = 60)
Answer any FIVE questions.
All questions carry equal marks.
11. (a) Explain the various types of registers with neat diagrams. (10)
(b) Write note on assembly and high level languages. (10)
12. (a) Discuss the memory, address, data and control buses in intel 8085. (10)
(b) Explain the different classification of memories. (10)
13. (a) Write an assembly language programs for 8-bit addition and subtraction. (10)
(b) Explain data masking with a programming example. (10)
14. (a) Explain stack operations with examples. (10)
(b) Describe the design of hexadecimal counter with time delay. (10)
15. (a) Give the block diagram of 8155 I/O port and explain. (10)
(b) Explain the closed loop process control with an example. (10)
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