TRS-XENIX is described as 'The goals are to understand and learn how the operating system works at a detailed level and to attempt to adapt it to modern hardware and software systems, such as solid state based hard drive emulators and Ethernet connected devices' and is a Operating System in the OS & Utilities category. There are more than 100 alternatives to TRS-XENIX for a variety of platforms, including Linux, Self-Hosted solutions, BSD, Windows and Mac. The best alternative is Ubuntu, which is both free and Open Source. Other great apps like TRS-XENIX are Debian (Free, Open Source), Linux Mint (Free, Open Source), Manjaro Linux (Free, Open Source) and Arch Linux (Free, Open Source).
Ubuntu is a community developed, Linux-based operating system that is perfect for laptops, desktops and servers. It contains all the applications you need - a web browser, presentation, document and spreadsheet software, instant messaging and much more.
Linux Mint is one of the most popular desktop Linux distributions and used by millions of people. The purpose of Linux Mint is to produce a modern, elegant and comfortable operating system which is both powerful and easy to use. Latest: Uma (20.2).
Arch Linux is an independently developed, i686- and x86_64-optimised GNU/Linux distribution targeted at competent Linux users. It uses pacman, its home-grown package manager, to provide updates to the latest software applications with full dependency tracking.