Digital Circuit and Microprocessor MCQs

Question 1

Which of the following is used extensively where lowest power consumption is necessary?

Accepted Answer

CMOS

Answer

NMOS

Answer

PMOS

Answer

Any of the above

Question 2

Which statement about the central processing unit is correct?

Accepted Answer

The instruction just being processed is stored in the CPU

Answer

The running programme is stored in the CPU

Answer

The CPU is a part of the peripherals

Answer

The CPU is also known as microprocessor

Question 3

The Boolean expression for the karnaugh map shown below is

Accepted Answer

Y=BD+ABC+ACD

Answer

Y= BCD +ABC + BC

Answer

Y = ABC + BCD +ACD

Answer

None of the above

Question 4

The output F of the multiplexer circuit in Fig. 7.22 can be represented by

Accepted Answer

X TIC+ ABC +AT3

Answer

AB+BZ + "EA.+BZ

Answer

A0 13 C

Answer

A ED B

Question 5

Micro-processors find applications in

Accepted Answer

all of the above

Answer

pocket calculators

Answer

scientific instruments

Answer

medical equipment

Question 6

Micro-processors were introduced in the year

Accepted Answer

1971

Answer

1951

Answer

1961

Answer

1981

Question 7

In Von-Neumann-or-Princeton-type computers, the program

Accepted Answer

memory and data memory are clearly distinguished

Answer

can appear anywhere within the memory

Answer

data and instruction are distinguished at the first stage

Answer

none of the above

Question 8

Once the information is placedinto a readonly memory

Accepted Answer

it cannot be modified easily

Answer

it can be modified easily

Answer

it is continuously modified

Answer

none of the above

Question 9

Flag bits in arithmetic unit provide

Accepted Answer

status type information

Answer

repeatability

Answer

facilities for rechecks

Answer

all of the above