The Unix-like family is by far the largest family of operating systems, including hundreds of distinct OSes being developed throughout its over 50-year history, and influencing basically every OS since the 80s. In this video, I explain the history and classification of Unix-like OSes.
(a transcript of this video in blog form is available at https://andreww591.blogspot.com/2024/01/history-and-classification-of-unix-like.html)
Chapters:
00:00 - Origins and early history
02:31 - The rise of side branches, increasing popularity and AT&T divestiture
03:58 - Standardization efforts and the Unix wars
06:11 - The rise of free/open source Unix-like systems
09:12 - Classification of Unix-like OSes
14:42 - Tenets of the Unix philosophy and common Unix architectural features
17:22 - Influence on other families
18:15 - Conclusions