Digital Circuit and Microprocessor MCQs

Question 1

The major disadvantage of magnetic tapes is

Accepted Answer

data is to be accessed sequantially

Answer

cost

Answer

unrealiability of sotred data

Answer

slow data recording

Question 2

One Megabyte is equivalent to

Accepted Answer

220 bytes

Answer

21? bytes

Answer

23? bytes

Answer

none of the above

Question 3

A system has a word length of 4 bits. If inthis system negative numbers are represented by their 2's compliment, then the range of numbers that can be represented by the word length is

Accepted Answer

-16 to +16

Answer

?8 to +8

Answer

?7 to +7

Answer

none of the above

Question 4

Which of the following is associated with optics?

Accepted Answer

RSM

Answer

Winchester disk

Answer

CD-ROM

Answer

None of the above

Question 5

The number 7F00 in Hexadecimal when multiplied by 16 is

Accepted Answer

none of the above

Answer

7F16

Answer

167F00

Answer

7F006

Question 6

The basic memory cell of dynamic RAM consists of

Accepted Answer

a transistor acting as a capacitor IIETE 19951

Answer

a capacitance

Answer

a transistor

Answer

a flip-floop

Question 7

Which of the following use least power?

Accepted Answer

CMOS

Answer

Tit

Answer

ECL

Answer

All use same power

Question 8

PROMs are used to store

Accepted Answer

relatively permanent information

Answer

bulk information

Answer

sequential information

Answer

information to be accessed rarely

Question 9

Which one of the following is not a vectored interrupt?

Accepted Answer

RST3

Answer

TRAP

Answer

INTR

Answer

RST7.5