Osmania University (OU) 2008 M.Sc Computer Science Microprocessors and Microcontrollers - Question Paper

Faculty of Science
M.Sc I-Semester exam Nov./Dec 2008
COMPUTER SCIENCE
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Paper -- 1.3 (Microprocessors and Microcontrollers)
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part -- A (Marks : eight X four = 32)
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1. Write short note on Decoder.
2. discuss R-2R ladder D/A converter.
3. Write note on ISA BUS Architecture.
4. explain Machine control instructions of 8085.
5. Write short notes on segment registers.
6. discuss briefly 8257(DMA Controller).
7. explain about Register A and Register B of 8051 Microcontroller.
8. Write about scanners.

part -- B (Marks : four X 12 = 48)
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9. (a) Mention various kinds of counters and discuss binary counter with diagram and timing diagram.

(OR)
(b) discuss any 2 kinds of A/D Converters.

10. (a) define architecture of 8085 Microprocessor with neat diagram.

(OR)
(b) discuss the addressing modes of 8085 with examples.

11. (a) define the subsequent :-(i) Register Organization in 8086. (ii) Status flags of 8086.

(OR)
(b) Draw the block diagram of 8253 Counter/Timer and discuss.

12. (a) discuss the arithmetic group instructions of 8051 with examples.

(OR)
(b) define the addressing modes of 8051 with examples.

Earning:   Approval pending.