Digital Electronics Mcqs | Set 1

MCQs 1: Most of the digital computers do not have floating point hardware because_____________?

floating point hardware is costly

it is slower than software

it is not possible to perform floating point addition by hardware

of no specific reason.

Answer Explanation

MCQs 2: A NAND gate is called a universal logic element because______________?

it is used by everybody

any logic function can be realized by NAND gates alone

all the minization techniques are applicable for optimum NAND gate realization

many digital computers use NAND gates

Answer Explanation

MCQs 3: In which of the following base systems is 123 not a valid number ?

Base 10

Base 16

Base8

Base 3

Answer Explanation

MCQs 4: The binary code of (21.125)10 is_______________?

10101.001

10100.001

10101.010

10100.111

Answer Explanation

MCQs 5: Digital computers are more widely used as compared to analog computers, because they are______________?

less expensive

always more accurate and faster

useful over wider ranges of problem types

easier to maintain

Answer Explanation

MCQs 6: Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000 ?

Two’s complement only

Sign and magnitude and one’s complement only

Two’s complement and one’s complement only

All three representations

Answer Explanation

MCQs 7: (1(10101)2 is_______________?

(37)10

( 69)10

(41 )10

— (5)10

Answer Explanation

MCQs 8: What is the octal equivalent of the binary number : 10111101 ?

675

275

572

573

Answer Explanation

MCQs 9: The number 1000 would appear just immediately after__________________?

FFFF (hex)

1111 (binary)

7777 (octal)

All of the above

Answer Explanation

MCQs 10: The number of Boolean functions that can be generated by n variables is equal to_________________?

22 n

2n-1

— 2n

Answer Explanation

MCQs 1: Most of the digital computers do not have floating point hardware because_____________?

MCQs 2: A NAND gate is called a universal logic element because______________?

MCQs 3: In which of the following base systems is 123 not a valid number ?

MCQs 4: The binary code of (21.125)10 is_______________?

MCQs 5: Digital computers are more widely used as compared to analog computers, because they are______________?

MCQs 6: Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000 ?

MCQs 7: (1(10101)2 is_______________?

MCQs 8: What is the octal equivalent of the binary number : 10111101 ?

MCQs 9: The number 1000 would appear just immediately after__________________?

MCQs 10: The number of Boolean functions that can be generated by n variables is equal to_________________?

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