Annamalai University 2008-2nd Year B.Sc Computer Science " 210 / 240 COMPUTER ARCHITECTURE AND MICROPROCESSORS " ( - VII ) ( PART - III ) ( ) 6621 - Question Paper
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B.Sc. DEGREE EXAMINATION, 2008
(COMPUTER SCIENCE)
(SECOND YEAR)
(PART - III)
( PAPER - VII)
210/240. COMPUTER ARCHITECTURE AND MICROPROCESSORS
(Revised Regulations )
(Common with B.Sc. -IT - Revised Regulations)
(Including Lateral Entry )
December ] [ Time : 3 Hours
Maximum : 100 Marks
SECTION - A (8 x 5 = 40)
Answer any EIGHT questions.
All questions carry equal marks.
1. What are XOR and AND gates. Give truth table for 2 input XOR and AND gates.
2. What is a counter ? List the applications of counters.
3. With a neat block diagram, explain the bus system of 8085.
4. What is memory map ? - Explain.
5. What is Data masking ? - Discuss.
6. Write an ALP moving a block of data from one location to another location. Draw the flow chart.
7. Explain how delay time is calcuated in a delay routine.
8. What are subroutines? Explain with examples.
9. Explain the BCD to Binary Conversion with suitable example.
10. Give a short note about software development tools.
SECTION - B (3 x 20 = 60)
Answer any THREE questions.
All questions carry equal marks.
11. (a) What is the function of registers ?-Explain, (b) State and prove Demorgon theorem.
12. With a detailed block diagram, explain the internal architecture of 8085 highlighting each block.
13. What is an instruction? How are the instructions classified for 8085 microprocessor ? Explain with suitable examples.
14. Explain how a stack can be constructed in an ALP. Using a suitable program, explain how data is stored in a stack and retrieved.
15. Write an ALP to convert a binary to ASCII code equivalent and also draw flow diagram.
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