MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -The control unit (CU) is a component of a computer’s central processing unit (CPU) that directs the operation of the processor.

Detailed explanation-2: -The control unit of the central processing unit regulates and integrates the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate moment…

Detailed explanation-3: -The principal system software is the operating system. It manages the hardware, data and program files, and other system resources and provides means for the user to control the computer, generally via a graphical user interface (GUI).

Detailed explanation-4: -ALU stands for Arithmetic and Logical Unit which performs Arithmetic functions like Addition, subtraction, division, etc. CU stands for control unit which performs the task of controlling functions of the computer. It monitors and gives proper instructions to all parts of the computer.

Detailed explanation-5: -Option 3 is the correct answer: Central Processing Unit (CPU) in a computer controls, coordinates and supervises the operations of the computer. Central Processing Unit (CPU) is also known as the brain of the computer.