MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Operating system (OS) – a software that controls and coordinates the computer hardware devices and runs other software and applications on a computer.

Detailed explanation-2: -Card reader, controller, modem, network card, sound card, printer, video card, USB devices, RAM, Speakers etc., need Device Drivers to operate. For example, a printer driver tells the printer which format to print after getting instructions from OS.

Detailed explanation-3: -System software is a type of computer program that is designed to run a computer’s hardware and application programs. If we think of the computer system as a layered model, the system software is the interface between the hardware and user applications. The operating system is the best-known example of system software.

Detailed explanation-4: -Purpose. The main purpose of device drivers is to provide abstraction by acting as a translator between a hardware device and the applications or operating systems that use it. Programmers can write higher-level application code independently of whatever specific hardware the end-user is using.

Detailed explanation-5: -Device driver A device driver is a computer program that enables communication between the operating system and a hardware device. The driver is part of the operating system and tells the system how to interact with hardware.