COA Question Bank for Mam

7/28/2019 COA Question Bank for Mam

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COA Question Bank

Unit I

1. What do you mean by sequential circuit? Explain sequential circuit

with help of example. (circuit diagram, input equation, state table,

state diagram etc.).

2. Discuss various logic gates with their symbol, equation and truth

table.

3. Explain Boolean algebra in detail.

4. Describe various Flip flops with their merits and demerits.

5. Explain Half and full adder with suitable circuit diagrams.

6. Perform the following

1. 1010100 1010100

2. 11010 1101

3. 10101010 + 111111

7. 1Convert the following

i. 7562 to octal

ii. 1938 for hexadecimal

iii. 175 to binary

8. Find the 9th compliment

i. 12349876

ii. 00980100

iii. 90009951

9. Obtain the 1s and 2s compliment


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i. 10101110

ii. 10000001

iii. 10000000

iv. 00000001

v. 00000000

10. Simplify by using Boolean algebra

i) AB + A(CD + CD)

ii) (BC + AD) (AB + CD)

iii) AB + ABC + ABC

11. Simplify the following Boolean functions using K-map.

i) F(x,y,z)=(0,1,5,7)

ii) F(x,y,z)=(1,2,3,6,7)

iii) F(x,y,z)=(0,2,3,4,6)

iv) F(A,B,C,D)=(4,6,7,15)

v) F(A,B,C,D)=(3,7,11,13,14,15)

vi) F(A,B,C,D)=(0,2,4,5,6,7,8,10,13,15)

12. The sequential circuit has two D flip flops A and B, two inputs

x, y and one output z. The input output equations and circuit output

is as follows

DA =xy + xA

DB =xB + xA

z=B


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i. Draw logic diagram

ii. Tabulate state table

iii. Draw state diagram

13. Discuss the four bit arithmetic circuit with its function table.

14. Explain the 4 bit arithmetic circuit in detail.

15. Describe the design of basic computer in detail.

Go to unit 24


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Unit 2

1. What is decoder? Explain NAND gate decoder in detail.

2. Describe 4 to 1 line multiplexer with the help of circuit diagram.

3. Explain register with parallel load.

4. What do you mean by Register transfer language? Explain it with

example.

5. What is shift register? Discuss bidirectional shift register with

parallel load.

6. Describe binary counter with parallel load.

7. Explain three state bus systems with memory transfer.

8. List and explain various logic micro operations with example.

9. Explain the arithmetic logic shift unit in detail.

10. Explain the terms: logical shift, circular shift, arithmetic shift.

11. Explain the basic accumulator logic with the help of logic

circuit.

Go to unit 35


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Unit 3

1. Discuss instruction cycle with help of flowchart.

2. List and discuss various memory reference instructions withexample.

3. Explain the interrupt cycle with the help of flowchart.

4. Explain various input output instructions.

5. What is symbolic microprogram? Explain with suitable example

6. Describe the following

i. Machine Language

ii. Assembly Language

iii. Assembler

iv. Subroutines.

7. Explain the terms : hardware interlocks, operand forwarding,

Delayed load, loop buffer. Go to unit 4 6


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Unit 4

1. Discuss the general register organization in detail.

2. Discuss the stack register organization in detail

3. Describe various instruction formats with the help of examples.

4. Explain various addressing modes in detail.

5. Discuss data transfer instruction with example.

6. Discuss data manipulation instruction with example.

7. Differentiate between RISC and CISC.

8. Discuss the structure of control memory with suitable diagram.

9. What do you mean by address sequencing? Explain it in detail.

10. Describe micro instruction formats in detail.

11. Discuss logical and bit manipulation instruction with example.

12. Differentiate between micro programmed control unit and

hardwired control unit.

Go to unit 5 7


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Unit 5

1. Discuss the concept parallel processing in detail.

2. Explain the general concept of pipelining with help of example.

3. Describe the floating point addition and subtraction with pipeline.

4. Discuss the four segment CPU pipeline with the help of diagram.

5. Explain the concept of vector processing with example.

6.Describe the attached array processor and SIMD array processor.

Go to unit 68


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Unit 6

1. Explain the various ways of asynchronous transfer.

2. Discuss the daisy chaining priority interrupt in detail.

3. What is DMA? Explain DMA controller in detail.

4. What is DMA? Explain DMA transfer in detail.

5. Discuss I/O processor with its functions.

6.What is DMA? Explain DMA controller with help of diagram.

Go to unit 7 9


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Unit 7

1. Discuss the characteristics of multiprocessors.

2. Explain various interconnection structures in multiprocessors.

3. Describe the serial and parallel arbitration logic with diagram.

4. Discuss the concept of interprocessor communication and

synchronization in detail.

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