Digital Computer Electronics MCQ Questions & Answers

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Each section contains 100 MCQs on Digital Computer Electronics .

A flip-flop can store:

A) 1 bits of data B) 2 bits of data C) 3 bits of data D) 4 bits of data E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

A logic circuit which is used to change a BCD number into an equivalent decimal number is

A) decoder B) encoder C) multiplexer D) code converter E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

Cyclic codes are used in

A) data transfer B) continuously varying signal representation C) arithmetic and logical computation 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

The digits used in a binary number system are _____ and _____

A) 9 and 0 B) 0 and 1 C) 1 and 2 D) 3 and 4 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-input XOR gate has a high output only when the input bits are _____

A) even B) different C) low D) high 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 binary number 1001010₂ to to its decimal number is

A) 74₁₀ B) 97₁₀ C) 72₁₀ D) 63₁₀ E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

A combinational logic circuit which generates particular binary word or number is

A) decoder B) multiplexer C) encoder D) demultiplexer E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

The 1's compliment of binary number 11010 is:

A) 101 B) 10 C) 110 D) 11101 E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

Conversion of binary number 110000₂ to hexadecimal is

A) 30₁₆ B) 40₁₆ C) 43₁₆ D) 27₁₆ E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

Conversion of an octal number 106₈ to binary number is

A) 1110010₂ B) 1000110₂ C) 1100110₂ D) 10000110₂ 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