JNTU
JNTU B.Tech III MICROPROCESSORS AND COMPUTER ORGANIZATION Previous Question Paper (April - 2018 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
List the different types of microprocessors.
Answer
Microprocessors are generally classified into General Purpose Microprocessors (e.g., Intel Core series), Microcontrollers (e.g., 8051), Digital Signal Processors (DSPs), and Application-Specific Integrated Circuits (ASICs).
What are the various registers present in 8085?
Answer
The 8085 microprocessor contains the following registers: Accumulator (A), General-purpose registers (B, C, D, E, H, L), Program Counter (PC), Stack Pointer (SP), Instruction Register (IR), and Temporary registers (W, Z), along with the Flag register.
Write various modes of operation.
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What is an Interrupt? Give example.
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What is meant by instruction code?
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What is computer instruction?
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What are memory and write its advantages.
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What is address sequencing?
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List the functionalities of a RAM.
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What are peripheral devices? Explain.
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Part B
Draw the architecture of 8086 processor and explain in brief the execution unit and bus interface unit.
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List the advantages of memory segmentation of 8086.
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Draw and explain the block diagram of microprocessor-based system and also explain the general sequence it follows to execute the instructions.
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Tabulate the differences between minimum and maximum modes of operations.
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Explain about the interrupt structure of 8086 with an example.
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Write the differences between D/A and A/D converter.
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Write any four differences between read mode and protected mode memory system.
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Explain real mode memory system of a personal computer system.
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Differentiate between Register Transfer Bus and memory transfer.
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Explain about Arithmetic logic shift unit in detail.
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Write briefly about arithmetic micro operations.
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Discuss about computer registers in detail with suitable example.
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What is RTL(Register Transfer language).What is its significance. Explain with an example.
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Explain Micro Program Example with neat diagram.
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Discuss in what way interrupts are classified in 8085.
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Explain briefly about control memory in micro programmed control.
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Write briefly about Input-Output processor(IOP).
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Give brief information on standard communication protocols like RS232.
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Discuss about priority interrupt direct memory access with a suitable example.
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Differentiate between RAM and ROM memories.
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