Question:

Which of the following code is used in present day computing was developed by IBM corporation?

A.

ascii

B.

hollerith code

C.

baudot code

D.

ebcdic code

Answer» d. ebcdic code

Question:

A complete microcomputer system consist of ………..

A.

microprocessor

B.

memory

C.

peripheral equipment

D.

all of the above

Answer» d. all of the above

Question:

Data hazards occur when …………………

A.

greater performance loss

B.

pipeline changes the order of read/write access to operands

C.

some functional unit is not fully pipelined

D.

machine size is limited

Answer» b. pipeline changes the order of read/write access to operands

Question:

Te devices connected to a microprocessor can use the data bus:

A.

all the time

B.

at regular interval of time

C.

only when it’s sending or receiving data

D.

when the microprocessor is reset

Answer» c. only when it’s sending or receiving data

Question:

Processors of all computers, whether micro, mini or mainframe must have

A.

alu

B.

primary storage

C.

control unit

D.

all of above

Answer» d. all of above

Question:

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

A.

symbolic microinstruction

B.

binary microinstruction

C.

symbolic microprogram

D.

binary microprogram

Answer» d. binary microprogram

Question:

What is the minimum number of flip-flops required in a counter to count 100 pulses?

A.

five

B.

seven

C.

ten

D.

hundred

Answer» b. seven

Question:

The access time of memory is …………… the time required for performing any single CPU operation.

A.

longer than

B.

shorter than

C.

negligible than

D.

same as

Answer» a. longer than

Question:

From where interrupts are generated?

A.

central processing unit

B.

memory chips

C.

registers

D.

i/o devices

Answer» d. i/o devices