An operating system for computer devices. The kernel or core of the Linux operating system is also called Linux. Linux is considered a prime example of open source and free software. Linux differs from other copyrighted operating systems, such as Windows and Mac OS. Anyone can use Linux's built-in source code seamlessly , improve it , and even redistribute it. To be precise, Linux refers only to the Linux kernel. However, all Unix-like operating systems that are based on the Linux kernel and are primarily built on the GNU (and other) project code collection (library) and tools (tools) associated with that kernel , are generally described as Linux. Is. In a broader sense, a Linux distribution refers to the aggregate of the Linux operating system and the enormous amount of application software that accompanies it. Linux distributions can be easily installed and updated on a computer. While some desktop environments, such as GNOME and KDE, are generally considered to be related only to Linux, they are also used in other operating systems (such as FreeBSD). Initially, only a few enthusiasts would use and improve Linux. Now large corporations such as IBM , Sun Microsystems , Hule-Packard , Novell , etc. have chosen Linux for use on servers. The demand and popularity of Linux is also increasing in the desktop market. According to Linux experts and Linux proponents, the reason behind the rise of Linux is that Linux is cheap , secure , reliable and does not have to be purchased from any specific vendor , meaning it is not vendor-dependent. Although Linux was originally designed for the Intel 36 microprocessor, it now operates under all of today's popular (even much older and rarer) computer architectures. Linux is now used in all environments - from embedded systems , such as mobile phones , personal video recorders , etc. to personal desktop or laptop computers , even supercomputers.