The Linux kernel was initially conceived and created by Finnish computer science student Linus Torvalds in 1991. Linux rapidly accumulated developers and users who adopted code from other free software projects for use with the new operating system. Many for-profit and open-source Linux distributions have been released based upon the original Linux kernel.

The courseware in this Linux OS category provides coverage for every level of user from the desktop application user to the high-end system administrator working in complex enterprise environments.