Question:

A pipeline is like ………………..

A.

an automobile assembly line

B.

house pipeline

C.

both a and b

D.

a gas line

Answer» a. an automobile assembly line

Question:

The output of a gate is low when at least one of its input is low . It is true for

A.

and gate

B.

or gate

C.

nand gate

D.

nor gate

Answer» a. and gate

Question:

Memory address refers to the successive memory words and the machine is called as …………

A.

word addressable

B.

byte addressable

C.

bit addressable

D.

terra byte addressable

Answer» a. word addressable

Question:

Intel 8080 microprocessor has an instruction set of 91 instruction. The opcode to implement this instruction set should be at least

A.

3 bit long

B.

5 bit long

C.

7 bit long

D.

9 bit long

Answer» c. 7 bit long

Question:

Interrupts which are initiated by an instruction are

A.

internal

B.

external

C.

hardware

D.

software

Answer» b. external

Question:

For a RS flip-flop constructed with NAND gates and input R=1 and s=1 the state is

A.

memory state

B.

set state

C.

reset state

D.

unused state

Answer» d. unused state

Question:

A collection of lines that connects several devices is called …………..

A.

bus

B.

peripheral connection wires

C.

both a and b

D.

internal wires

Answer» a. bus

Question:

Intel Pentium CPU is a

A.

risc based

B.

cisc based

C.

both of the above

D.

none of the above

Answer» a. risc based

Question:

A microprogram written as string of 0’s and 1’s is a ………….

A.

symbolic microinstruction

B.

binary microinstruction

C.

symbolic microinstruction

D.

binary micro-program

Answer» d. binary micro-program

Question:

CPU does not perform the operation ………………

A.

data transfer

B.

logic operation

C.

arithmetic operation

D.

all of the above

Answer» a. data transfer