MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -An operating system is a program that acts as an interface between the computer user and computer hardware, and controls the execution of programs.

Detailed explanation-2: -The operating system manages the interaction between applications and the hardware. To access and communicate with the hardware, the operating system installs a device driver for each hardware component. A device driver is a small program written by the hardware manufacturer and supplied with the hardware component.

Detailed explanation-3: -Detailed Solution. The correct answer is Graphical User Interface. An operating system enables a person to communicate with a computer through the use of symbols, icons, visual metaphors, and pointing devices. It is classified in Graphical User Interface.

Detailed explanation-4: -A device driver is a special kind of software program that controls a specific hardware device attached to a computer. Device drivers are essential for a computer to work properly.

Detailed explanation-5: -An operating system is the most important software that runs on a computer. It manages the computer’s memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer’s language.