Computer Architecture MCQ Questions and Answers – Part 1

Computer architecture MCQ questions and answers for the preparation of tests, exams, and certifications. So you will find questions about different types of registers in the computer, random access memory (RAM), main memory, memory instructions, arithmetic, and logic unit, and much more. This systematic learning method will easily prepare anyone to pass their exam.

1. The memory that allows simultaneous reading and writing is _________?

A ROM

B RAM

C EPROM

D EEPROM

2. Which of the following expressions does NOT represent the exclusive NOR of x and y?

A xy + x’ y’

B x ^ y’ where ^ is XOR

C x’ ^ y where ^ is XOR

D x’ ^ y’ where ^ is XOR

The following character (‘) represents the logical operator (NOT)

3. Which of the following is not considered a computer hardware device?

A Disk

B Keyboard

C Monitor

D CPU

4. The size of the accumulator register can be ____?

A 4 bits

B 4 Kb

C 4 bytes

D 4 Mb

5. The fastest computer component is ______?

A RAM

B cache

C register

D Disk

6. The ______ format is generally used to store data.

A BCD

B Decimal

C Hexadecimal

D Octal

BCD (Binary-Coded Decimal) is a format for representing decimal numbers (integers) in which each digit is represented by four bits. For example, the number 375 is represented by: 0011 0111 0101.

7. A source program is usually written in _______.

A Assembly language

B Machine-level language

C High-level language

D Natural language

The program before it goes through compilation or assembly is called a source program.

8. The ALU uses _______ to store intermediate results.

A The accumulators

B The registers

C The heap

D The stack

The ALU (Arithmetic and Logic Unit) is the computing element of the CPU. It performs all mathematical and logical operations. In order to work better, it uses internal memory spaces to store the immediate results.

9. A computer “BUS” consists of ______?

A registers

B accumulators

C group of parallel lines

D computer clock

10. The simplified sum of products of the following Boolean expression
(P + Q ‘+ R’). (P + Q ‘+ R). (P + Q + R ‘) is ______?

A (P’.Q + R’)

B (P + Q’.R’)

C (P’.Q + R)

D (P.Q + R)

The following character (‘) represents the logical operator (NOT)

1. The memory that allows simultaneous reading and writing is _________?

2. Which of the following expressions does NOT represent the exclusive NOR of x and y?

3. Which of the following is not considered a computer hardware device?

4. The size of the accumulator register can be ____?

5. The fastest computer component is ______?

6. The ______ format is generally used to store data.

7. A source program is usually written in _______.

8. The ALU uses _______ to store intermediate results.

9. A computer “BUS” consists of ______?

10. The simplified sum of products of the following Boolean expression (P + Q ‘+ R’). (P + Q ‘+ R). (P + Q + R ‘) is ______?

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10. The simplified sum of products of the following Boolean expression
(P + Q ‘+ R’). (P + Q ‘+ R). (P + Q + R ‘) is ______?