Digital Computer Electronics MCQ Questions & Answers

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Each section contains 100 MCQs on Digital Computer Electronics .

Which of the following is a universal gate?

A) AND B) OR C) EX-OR D) NAND E) None of the above

Discuss

Answer & Solution

Answer: Option D

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

The number of input words in a truth table always equals _____ where n is the number of inputs bits.

A) 10ⁿ B) 2ⁿ C) 4ⁿ D) 8ⁿ 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 decimal number 61₁₀ to it's binary number equivalent is

A) 111101₂ B) 111100₂ C) 110011₂ D) 001101₂ E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

Multiplication of 47₈ by 52₈ is

A) (3144)₈ B) (4147)₈ C) (3146)₈ D) (3184)₈ E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

Which of the following boolean algebra statements represent commutative law

A) (A+B)+CA+(B+C) B) A.(B+C)(A.B)+(A.C) C) A+BB+A D) A+AA E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

Binary-Coded-decimal (BCD) numbers express each digit as a _____

A) byte B) nibble C) bit D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the _____ is sent to each flip-flop.

A) latch B) clock C) master D) slave 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 decimal number 93₁₀ to hexadecimal number is

A) 2D₁₆ B) 5D₁₆ C) 62₁₆ D) 31₁₆ 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 decimal number 99₁₀ to it's octal number equivalent is

A) 121₈ B) 143₈ C) 124₈ D) 119₈ E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

The 2's compliment of binary number 0.01011 is:

A) 1.10101 B) 0.10101 C) 1.101 D) 0.101 E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

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Digital Computer Electronics MCQ Questions & Answers | Computer Science