What is Linux


Linux Fullform
Named after Linus Torvalds, who initiated the development of the open source Linux kernel.

Linux Means
Linux is a free and open source Unix-like computer operating system originally developed for Intel x86-based personal computers by Linus Torvalds. The name Linux is used in many ways ie as a kernel, as an operating system as GNU/Linux (because so many of the Linux programs and commands come from the GNU project), the term Linux is also used for a Linux distribution. During the development Linux Torvalds stored the files to the FTP server (ftp.funet.fi) of Finnish University and Research Network (FUNET) under the name “Freax” ( a portmanteau of “freak”, “free”, and “x” for UniX).

History of UNIX
UNIX is an Operating System (OS).
UNIX was developed about 40 years ago i.e., 1969 at AT&T Bell Labs by Ken Thompson and Dennis Ritche.
It is a Command Line Interpreter.
It was developed for the Mini-Computers as a time sharing system.
UNIX was the predecessor of LINUX

History of LINUX
LINUX was created by Linus Torvalds in 1991.
LINUX is a open source.
LINUX is a variant of UNIX.

LINUX is free.
view and edit the source code of OS
It is fully customizable.

Most Important Feature is Stability
30Years to get the bugs
Important in shared environments and critical applications

LINUX has better security structure.
High Portability
Easy to port new H/W Platform
Written in C which is highly portable

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