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Digital Components - Computer Architecture and Organization Objective Questions & Answers

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Computer System Architecture and Organization multiple choice questions and answers set contain 5 Computer science mcqs on digital components. Each quiz objective question has 4 options as possible answers. Choose your option and check it with the given correct answer.

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(1) Which of the following shift operations divide a signed binary number by 2 ?
[A] Logical left shift
[B] Logical right shift
[C] Arithmetic left shift
[D] Arithmetic right shift

Comment

Answer: Option [B]

Logical right shift operation can divide the number by 2 on shifting one bit

(2) Normally digital computers are based on
[A] AND and OR gates
[B] NAND and NOR gates
[C] NOT gate
[D] None of the above

Comment

Answer: Option [B]

NAND and NOR gates are universal gates which are deployed into various computers

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(3) BCD stands for
[A] Boolean code definition
[B] Binary coded division
[C] Binary coded decimal
[D] None of the above

Comment

Answer: Option [C]

Binary coded decimal

(4) The basic circuit ECL supports the
[A] NAND logic
[B] NOR logic
[C] EX-OR logic
[D] OR-NOR logic

Comment

Answer: Option [D]

OR-NOR logic is used to design ECL circuit

(5) An adder-subtractor single unit can be designed using full adder and
[A] OR gates
[B] XOR gates
[C] NOR gates
[D] NAND gates

Comment

Answer: Option [B]

We use full adder and XOR gates to construct adder-subtractor

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