Educative Answers Team Show Linux kernel is a free, open-source, monolithic, modular, Unix-like operating system kernel. It is the main component of the Linux operating system (OS) and is the core interface between the computer’s hardware and its processes.
The Linux kernel is used by Linux distributions alongside GNU tools and libraries. This combination is sometimes referred to as GNU/Linux. Popular Linux distributions include Ubuntu, Fedora, and Arch Linux. Open-sourceThe Linux kernel was created by Linus Torvalds and is currently an open-source project with thousands of developers actively working on it. MonolithicThe Linux kernel is monolithic, meaning the kernel handles all hardware and driver operations. The entire operating system is virtually working in kernel space. ModularThe Linux kernel supports the insertion and removal at runtime of loadable kernel modules. By keeping only the necessary modules in kernel memory, the kernel’s memory footprint is reduced and its overall performance is increased. RELATED TAGS linux kernel operating systems Copyright ©2022 Educative, Inc. All rights reserved Linux is one of popular version of UNIX operating System. It is open source as its source code is freely available. It is free to use. Linux was designed considering UNIX compatibility. Its functionality list is quite similar to that of UNIX. Components of Linux SystemLinux Operating System has primarily three components
Kernel Mode vs User ModeKernel component code executes in a special privileged mode called kernel mode with full access to all resources of the computer. This code represents a single process, executes in single address space and do not require any context switch and hence is very efficient and fast. Kernel runs each processes and provides system services to processes, provides protected access to hardware to processes. Support code which is not required to run in kernel mode is in System Library. User programs and other system programs works in User Mode which has no access to system hardware and kernel code. User programs/ utilities use System libraries to access Kernel functions to get system's low level tasks. Basic FeaturesFollowing are some of the important features of Linux Operating System.
ArchitectureThe following illustration shows the architecture of a Linux system − The architecture of a Linux System consists of the following layers −
What is Linux defined as?Linux is an open source operating system that is made up of the kernel, the base component of the OS, and the tools, apps, and services bundled along with it.
What is the core of the Linux operating system Mcq?Explanation: The kernel is the core of the Linux operating system. 3.
Which of these is a core part of the operating system?The correct answer is Kernel. The first program loaded on start-up and manages computer system resources is Kernel. A kernel is the central part of an operating system.
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