1. Unix - A teaser

-Ken Thompson and Dennis Ritchie first wrote UNIX at AT&T Bell Labs

-UNIX is unique in that it wasn't designed as a commercial operating system meant to run application programs, but as a hacker's toolset, by and for programmers. In fact, an early release of the operating system went by the name PWB (Programmer's Work Bench)

-UNIX is also important to power users because it's one of the last popular operating systems that doesn't force you to work behind an interface of menus and windows and a mouse with a "one-size(-doesn't)-fit-all" programming interface