History of Linux operating system

Linux kernel, which is a core of Linux Operating system was developed by Linus Torvalds, however modern Linux distributions consist not only of the kernel, but they consist of other packages. These packages are meant for specific function. For example sendmail software is needed to send and receive emails, Apache web server is needed to serve web content.

Linux was originally developed for a personal computer using x86 architecture. Nowadays Linux runs not only on personal computers, but it runs on servers.

Linux is the base for Android.

Chrome OS has roots in Linux.

Vast majority of servers in the Internet runs Linux.

Embedded systems such as television sticks run Linux.

Linux mentality is being an open source. Open source means that you are able to see the source code, make changes, share with others. I will cover details of open source later. 

Linux is community supported. It means many people can contribute to development of Linux, and it is not lock in to a single company.

Linux supports older hardware. Purchasing newer hardware maybe a significant expenditure.

Precursor of Linux was Unix operating system.

In 1985 Free Software Foundation was established by Richard Stallman.

In 1989 GNU  GPL (General Public License) was published.

By early 1990s many of the core OS applications were developed.

By early 1990s was also developed the windowing system.

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