This document contains a question bank for the course "Computer Organization" with questions divided into multiple units. Unit 1 covers basic concepts like binary codes, logic gates, flip-flops and combinational circuits. Unit 2 focuses on integrated circuits including decoders, multiplexers and memory units. Unit 3 is about instruction codes, addressing modes and assembly languages. Unit 4 discusses I/O systems and transfer modes. The final unit covers auxiliary memory techniques such as cache, virtual memory and memory management hardware.

1. RAJALAKSHMI ENGINEERING COLLEGE
DEPARTMENT OF COMPUTER APPLICATIONS
QUESTION BANK
MC9211- COMPUTER ORGANIZTION
UNIT – I
PART – A
1.What is a radix.
2.What is binary code.
3.What is an alpha numeric character set.
4.What is the use of complements and what are its types.
5.What is overflow and how can be it detected.
6.How is the floating point represented.
7.What are the other binary codes.
8.What is a parity bit.
9.What is the difference the between computer architecture and computer
organization.
10.What are gates.
11.What is truth table.
12.What is minterm.
13.What is SOP and POS.
14.What is don’t care conditions.
15.What is half adder,full adder,half subtractor,full subtractor.
16.What are flipflops and its kinds.
17.What is sequential circuits.
18.What is a state table.
19.What is a combinational circuit.
PART – B
1.What are the basic identities of Boolean algebra and explain each with proof.
2. Explain various flip-flops.
3. Perform the following addition and check by converting the binary numbers to
decimal
a) 1001.1 + b) 101.1 + c) 1100.011 + d) 1101 +
1011.01 111.1 1011.011 1000

2. 4.Perform the following subtraction of binary numbers , using both 1’s & 2’s
complements
a) 11011 - b) 11011 -
10011.11 11001
5. sExplain with example SOP and POS.
6. Converting the following
a) (15)8 to decimal
b) (7423)8 to binary
c) (A492)16 to decimal
d) (101101110)2 to decimal
7. a) State and prove DeMorgan’s theorem
b) Prepare a table of combination and prove
(X + Y) (X + Z) = X + YZ
7. Draw the truth table Karnaugh map and simplify the following expressions in
four
Variables W, X, Y, and Z :
m0+m5+m7+m8+m11+m13+m15
9. Design an AND-to-OR gate combinational network for the Boolean algebra
function
F = W' X' Y' Z' + W X' Y' Z + W X' Y' Z' + W X' Y Z + W' X Y' Z'
Use as few gates as possible

3. UNIT II
PART – A
1. What is integrated circuits.
2. What is a decoder, encoder, multiplexer, demultiplexer.
3. What is register, shift register, binary counter
4. What is memory unit.
5. What are the types of ROM.
6. What is micro-operation
7. What is a three-state gate.
PART- B
1. Explain registers with parallel load.
2. Explain bidirectional shift register with parallel load.
3 .Explain binary counter with parallel load.
4. Explain arithmetic logic shift unit.
UNIT – III
PART – A
1. What is an instruction code.
2. What is an effective address.
3. What are the basic computer instruction formats.
4. Difference between hardwired control and microprogrammed control.
5. What is an interrupt cycle.
6. What is an assembly language and machine language.
7.What is an assembler.
PART – B.
1.Explain common bus system in detail.
2.Explain the control unit of basic computer.
3.Explain about memory reference instructions
4.Explain complete computer description.
5.Explain design of basic computer.
6.Explain design of accumulator logic
7.Explain first pass and second pass assembler.

4. UNIT – IV
PART - A
1.What is a peripheral.
2.What is a I/O command, control command, status, output data and input data.
3.What is isolated versus memory-mapped I/O.
4.What is synchronous and asynchronous data transfer.
5.What is polling.
PART – B
1.Explain asynchronous data transfer.
2.Explain the modes of transfer.
3.Explain Daisy-Chaining priority.
4.Explain DMA.
5.Explain Input-Output Processor.
UNIT – V
PART – A
1.What is auxillary memory, cache memory.
2.What is locality of reference.
3.What is hit ratio.
4.What is a page frame.
PART-B
1.Explain Associative memory.
2.Explain Cache memory.
3.Explain Virtual memory.
4.Explain in detail memory management hardware.
5.Explain general register organization.
6.Explain instruction formats.
7.Explain addressing modes.