Digital Computer Electronics MCQ Questions & Answers

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Each section contains 100 MCQs on Digital Computer Electronics .

The 2's compliment of binary number 010111.1100 is

A) 101001.11 B) 101000.01 C) 10111.0011 D) 101000.0011 E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In boolean algebra, the times sign stands for the _____ operation

A) AND B) OR C) NAND D) NOR E) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What logic function is obtained by adding an inverter to the output of an AND gate?

A) OR B) NAND C) XOR D) NOR E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Conversion of an octal number 7432₈ to a binary number is

A) 1111000110111₂ B) 111100011010₂ C) 110011010111₂ D) 111111111000₂ E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Conversion of an octal number 143₈ to hexadecimal number is

A) 63₁₆ B) 60₁₆ C) 50₁₆ D) 57₁₆ E) None of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.

A) volatile B) static C) semiconductor D) bipolar E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

A byte is consist of _____ bits

A) two B) four C) eight D) ten E) None of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the 1's complement of 0000 1111 0010 1101 number?

A) 1111 0000 0010 1101 B) 1111 0000 1101 0010 C) 1111 1100 1010 1100 D) 1001 0010 1010 1100 E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Addition of 1101₂ and 1010₂ is

A) 10101₂ B) 11000₂ C) 11011₂ D) 10111₂ E) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A NAND gate is equivalent to an AND gate followed by an inverter. All inputs must be _____ to get a low output

A) low B) high C) some low and some high D) 0's E) None of the above

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Digital Computer Electronics MCQ Questions & Answers | Computer Science