MCQ IN COMPUTER SCIENCE & ENGINEERING

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COMPUTER SCIENCE AND ENGINEERING

COMPUTER ORGANIZATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a computer, the ____ subsystem performs calculations and logical opera-tions.
A
ALU
B
input/output
C
memory
D
control unit
Explanation: 

Detailed explanation-1: -The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND. The memory stores the program’s instructions and data. The control unit fetches data and instructions from memory and…

Detailed explanation-2: -An arithmetic-logic unit is the part of a central processing unit that carries out arithmetic and logic operations on the operands in computer instruction words.

Detailed explanation-3: -The central processing unit (CPU) is the brains of the computer, capable of controlling and performing mathematical calculations.

Detailed explanation-4: -A computer can be divided into three broad categories or subsystem: the central processing unit (CPU), the main memory and the input/output subsystem. The central processing unit (CPU) performs operations on data.

Detailed explanation-5: -The stored program concept, sequential execution of instructions, and the four major subsystems of the Von Neumann architecture – memory, input/output, the arithmetic/logic unit, and the control unit – are examined in detail.

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