MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -January 2022) The kernel is a computer program at the core of a computer’s operating system and generally has complete control over everything in the system. It is the portion of the operating system code that is always resident in memory and facilitates interactions between hardware and software components.

Detailed explanation-2: -It is the core that provides basic services for all other parts of the OS. It is the main layer between the OS and underlying computer hardware, and it helps with tasks such as process and memory management, file systems, device control and networking.

Detailed explanation-3: -Kernel is system software which is part of operating system. Operating System provides interface between user and hardware. Kernel provides interface between applications and hardware. It also provides protection and security.

Detailed explanation-4: -It consists of memory, the processor or the central processing unit (CPU), and input/output (I/O) components such as graphics, storage, and networking. The CPU executes computations and reads and writes to memory. There are two modes for the code executed by the system on a CPU: kernel mode and user mode.

Detailed explanation-5: -The kernel is a core component of an operating system and serves as the main interface between the computer’s physical hardware and the processes running on it. The kernel enables multiple applications to share hardware resources by providing access to CPU, memory, disk I/O, and networking.