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__Question 1:__

A group of bits that tell the computer to perform a specific
operation is known as

a. Instruction code

b. Micro-operation

c. Accumulator

d. Register

Select one:

a. d

b. b

c. a

d. c

**Correct Answer:**

__Question 2:__
Two processors A and B have clock frequencies of 700 Mhz and
900 Mhz respectively. Suppose A can execute an instruction with an average of 3
cycles and B can execute with an average of 5 cycles. How much faster is
the processor compared to the
other?(chose the closest answer)

a) 5 times

b) 3 times

c) Both take the same time

d) 1.3 times

Select one:

a. b

b. c

c. a

d. d

**Correct Answer:**1.3 times

__Question 3:__
(2FA0C) 16 is equivalent to

a. 2576

b. (001011111011100) 2

c. Both (A) and (B)

d. (195084) 10

Select one:

a. a

b. d

c. b

d. c

**Correct Answer:**(195084) 10

__Question 4:__
Reverse Polish notation, expression A*B+C*D is written as

a. AB*CD*+

b. A*BCD*+

c. AB*CD+*

d. A*B*CD+

Select one:

a. c

b. d

c. b

d. a

**Correct Answer:**

__Question 5:__
Two processors A and B have clock frequencies of 700 Mhz and
900 Mhz respectively. Suppose A can execute an instruction with an average of 3
cycles and B can execute with an average of 5 cycles. For the execution of the
same instruction which processor is faster?

a) A

b) B

c) Both take the same time

d) Insufficient information

Select one:

a. a

b. c

c. d

d. b

**Correct Answer: A**

__Question 6:__
Find the effective address of the following instruction :
MUL 7(R2,R3)

a) 7+R2+R3

b) 7+(R2*R3)

c) 7+[R2]+[R3]

d) 7*([R2]+[R3])

Select one:

a. b

b. d

c. c

d. a

**Correct Answer:**7+[R2]+[R3]

__Question 7:__
Suppose that a bus has 16 data lines and requires 4 cycles
of 250 nsecs each to

transfer data. The bandwidth of this bus would be 2
Megabytes/sec. If the cycle time

of the bus was reduced to 125 nsecs and the number of cycles
required for transfer

stayed the same what would the bandwidth of the bus?

a 1 Megabyte/sec

b 4 Megabytes/sec

c. 8 Megabytes/sec

d. 2 Megabytes/sec

Select one:

a. d

b. a

c. c

d. b

**Correct Answer:**

__Question 8:__
Floating point representation of (-0.75)10 is

a.10111111010000000000000000000000

b. 00111111010000000000000000000000

c. 11111111010000000000000000000000

d. 10111111010000000000000000001111

Select one:

a. b

b. a

c. d

d. c

**Correct Answer:**

__Question 9:__
Generally Dynamic RAM is used as main memory in a computer
system as it

a. Consumes less power

b. has higher speed

c. has lower cell density

d. needs refreshing circuitry

Select one:

a. 1

b. d

c. b

d. c

**Correct Answer:**

__Question 10:__
For a microprocessor having 32 data lines and 64 address
lines ,maximum number of bits that can be stored in the memory is

a)64 x 2^32

b)32 x 2^32

c)32 x 2^64

d)64 x 324

Select one:

a. c

b. a

c. d

d. b

**Correct Answer:**

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