MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

OPERATING SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Kernel is the main component of most computer operating system. Select the answer that describes the function of kernel.
A
Manages the computer resources and allow other programs to run and use these resources
B
Requests service from the operating system based on the monolithic kernel or to microkernel
C
Organizes data in an effective manner and is turned to the specific characteristics of the device
D
Provides an interface for users of an operating system which allows access to the service of a kernel
Explanation: 

Detailed explanation-1: -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 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-3: -Functions of a kernel include scheduling processes, resource allocation, device management, interrupt handling, memory management, and process management.

Detailed explanation-4: -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.

There is 1 question to complete.