ArcaOS 5.1 is the latest commercial release of the modern OS/2-based operating system developed by
If you are a student, retro-enthusiast, or developer, do not be discouraged by the price. Consider the 90-day trial your "free ISO." It costs nothing but an email address and gives you 2,160 hours to explore the object-oriented Workplace Shell.
ArcaOS 5.1 is not OS/2. It is a derivative that requires a paid license key ($139 for the personal edition).
However, if you are a hobbyist, retro-computing enthusiast, or running legacy industrial software, the paid license offers one of the most fascinating alternative operating systems available today.
Since "free" isn't an option for new users, here are the official ways to get your hands on the software from the Arca Noae Shop Price (New License) Personal Edition 6 months of Support & Maintenance Commercial Edition 1 year of Support & Maintenance Upgrade Discounts:
ArcaOS 5.1 is a fully-fledged, 32-bit, preemptive multitasking operating system that includes: