Linux kernel is the backbone of Linux operating system and it can be freely downloaded from Linus Torvald's website. Linux kernel is the software development kit for embedded computer devices and it can be freely used under the GNU public licence, which is based on the Unix platform. The Linux kernel can be freely downloaded and it has become the de facto standard for embedded systems. The reason for this is that it is free and it provides a free software stack, free software modules and free hardware drivers for your device that must be part of the Linux package. This makes it popular among embedded systems.
Read more about linux is an open source operating system here.
The main component of the kernel is the kernel which provides the central information system and controls and manages the execution environment of the machine. It can be freely distributed and developed by any person as long as they meet the license terms. This is unlike most software packages that need a licensed distribution in order to be distributed and developed by an individual. The Linux kernel and the associated software are an important part of free software and it ensures the quality and security of the package.
Linux kernel and its associated source code are licensed under the permissive free software license, which allows anyone to use, develop, improve and distribute the software for any purpose, especially for commercial purposes. There are different levels of licensing available in the source repository, depending on what kind of functionality you want to achieve. These different levels of licensing also provide flexibility to the user when it comes to choosing the right distribution and the right development tools. Some of the commonly available distributions are the Open Source Definition, the GNU General Public License, the BSD Free Software License and the Linux Kernel Source Code.
The most common and free software is the Open Source Definition, which provides the freedom to use, develop, distribute and modify the software under the GNU General Public License (GPL) and the GNU Lesser General Public License (LPGLP). This kind of licence allows the user to use the source code for free as long as the end users don't make any commercial use of the material. The software is distributed with full attribution to the original author and the company which produces and support the Linux kernel.
The BSD license enables the users to use, develop and distribute free software libraries forked from the original BSD and to include their modifications as well. The Linux kernel developers have developed a ports collection, which can be used by any user who obtains the distribution. It is based on the official distribution of the Linux but distributes various additional software packages under different names so as to allow the users to install the needed software quickly without having to change the operating system. The most prominent among these software is the X Window server, a server used to manage multiple graphical displays. Another popular software is the Open Disk image which is used to run CD-based software applications like music CDs, video games, office suite and so forth.
The third distribution port, the Linux kernel source code is based on the kernel of the Linux kernel. The kernel of the Linux kernel can be licensed under the Linux free license. The users are allowed to make modifications to the kernel without any charge. However, they cannot sell modified kernels. They can only distribute the work as it is, i.e. in its original form.
As Linux started out as an alternative to the Windows family of operating systems, it was marketed under the name 'LAMP' which stands for Linux, Apache, MySQL, PHP. This gave it a unique identity among users and enterprise businesses. Later on, as a solution for common web application requirements, the software was developed and released under a variety of open source licenses, including the GNU General Public License. This enabled third party companies to develop software solutions based on the Linux kernel and provide a variety of add-on modules, drivers and utilities to enhance the functionality and performance of the system. With this development, the popularity and use of Linux hosting services across the world has increased tremendously. In fact, many service providers offer a free and dedicated Linux hosting platform.
There are many people who consider Linux to be a better alternative to the Windows family of applications. Many companies who use Windows face various problems such as system crashes, system lockups and data loss due to security vulnerabilities in the Windows kernel. In contrast, the Linux kernel has a number of security and bug fixes that ensure maximum user control and stability. This is one of the reasons why Linux has become popular over the years. Thus, it can be said that Linux is not only open source software but also an extremely stable and powerful software solution that have made it extremely easy for end-users to deploy and use.