Digital Computer Electronics MCQ Questions & Answers

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Each section contains 100 MCQs on Digital Computer Electronics .

Convert the 1000 0000 0000 1111 signed binary number to decimal number.

A) 15 B) -15 C) -30 D) 30 E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

The _____ is a sequence of instructions that tells the computer how to process the data.

A) data B) program C) controls D) instruction E) None of the above

Discuss

Answer & Solution

Answer: Option B

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

The output of the following gate is 1 only if at least one of its inputs is 0.

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

Discuss

Answer & Solution

Answer: Option C

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

The highest decimal number that can be represented with 10 binary digits is

A) 1023 B) 1024 C) 512 D) All of the above E) None of the above

Discuss

Answer & Solution

Answer: Option A

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

The clock signals are used in sequential logic circuits

A) to tell the time of the day B) to tell how much time has elapsed since the system was turned on C) to carry serial data signals D) to synchronize events in various parts of a system E) None of the above

Discuss

Answer & Solution

Answer: Option D

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

In boolean algebra, the overbar stands for the NOT operation, the plus sign stands for the _____ operation.

A) AND B) OR C) NAND 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

The reduced form of the Boolean expression (A+B)(A+C) is:

A) AB+AC B) A+B+C C) AC+B D) A+BC E) None of the above

Discuss

Answer & Solution

Answer: Option D

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

A full-adder adds _____ bits, and producing a SUM and a _____

A) 8, SUBTRACTION B) 3, CARRY C) 16, DIVIDE 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 radix of the binary number is:

A) 3 B) 1 C) 2 D) 10 E) None of the above

Discuss

Answer & Solution

Answer: Option C

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

100

An XOR gate recognizes only words with an _____ number of 1's.

A) even B) odd C) different 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

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Digital Computer Electronics MCQ Questions & Answers | Computer Science