RetroBSD
Description: RetroBSD is an open source recreation of the historical BSD operating systems from the 1970s through early 1990s. It is lightweight, portable, and aims to recreate the look, feel, and functionality of older BSD systems.
Type: software
Pricing: Open Source
Ubuntu
Description: Ubuntu is a free and open source Linux distribution based on Debian. It is easy to use, highly customizable, and has a large community supporting it.
Type: software
Pricing: Free