MODEL PAPER
FIRST SEMESTER, M. Sc INFORMATION TECHNOLOGY

Paper - I (MIT - 101): Computer Architecture

1. Question
1. With the help of characteristic table, discuss the operation of an RS flip-flop. Explain how the JK flip-flop is an improvement over the RS flip-flop
2. What is full adder circuit? Give the truth table of a full adder.
3. Draw and explain the Von Neuman Model of a Computer.
2. Question
1. Explain working of a 2 X 4 decoder design using NAND gates. Give block diagram of a decoder and explain how two decoders can be combined to expand decoder.
2. Give logic diagram of a binary counter constructed using T flip-flop.
3. Question
1. Using a suitable example, show how subtraction can be performed using 2's compliment of the subtrahend.
2. What is a microoperation? How it is different from Computer instruction and operations?
3. What the different logic and shift microoperations? Give hardware implementations of different logic microoperations.
4. Question
1. What is an Instruction Cycle? Explain how control signals are generated from instructions.
2. Draw a Schematic diagram to illustrate fetch-execute cycle.
5. Question
1. Distinguish between a hardwired and microprogrammed control unit.
2. Give a representative (arbitrary) format of a microinstruction and explain the role of its various functional parts.
6. Question
1. What are the different types of instructions normally available in a typical microprocessor?
2. Give the format of microprocessor instruction and explain it.
3. Explain the following 8085 instructions: -
   1. LDA 102F
   2. LXI H, 102F
   3. STAX D
   4. RAL
7. Question
1. What is an associative memory? Discuss the hardware organization of an associative memory.
2. What is a Cache memory? Explain the hit ratio mapping process in relation to a cache memory.
8. Question

Write notes on any three of the following: -
1. Pentium Processor
2. Assemblers
3. Chipsets
4. RISC
5. Microcontroller