If a tip is talking about something that you don't know about or don't care about, just go to the next one. Enough talk, on with the tips. UNIX is a computer operating system. The operating system of a computer is the most important software that runs on it. It handles input, output, keeping track of files, security, etc.
All computers have operating systems.
UNIX is a powerful operating system that lets many people use a comuter at the same time. It has gained much popularity because it is available for many different types of computers and can easily be ported to new types of computers. UNIX was first created in 1969 in Bell Labs. The source code was distributed in the 70s and many different versions were created. This is the version that runs on Worf.