MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Explanation: An operating system is the primary software that manages all the hardware and other software on a computer. The operating system, also known as an “OS, ” interfaces with the computer’s hardware and provides services that applications can use.

Detailed explanation-2: -The operating system that a computer uses sometimes is called the platform. With purchased application software, the package or specifications identify the required platform. A cross-platform program is one that runs the same on multiple operating systems.

Detailed explanation-3: -The operating system (sometimes called the “OS”) provides a common set of controls for managing computer hardware, making it easier for users to interact with computers and for programmers to write application software.

Detailed explanation-4: -A platform consists of an operating system, and the hardware. The hardware consists of the microprocessor, main storage, data bus and attached I/O devices (disks, display, keyboard, etc.). The operating system must be designed to work with the particular microprocessor’s set of instructions.

Detailed explanation-5: -For desktop and laptop computers, Windows is the most used at 76%, followed by Apple’s macOS at 16%, and Linux-based operating systems at 5% (i.e. “desktop Linux” at 2.6%, plus Google’s ChromeOS at 2.4%, in the US up to 6.2%).