I worked on a SCO system briefly in about '02, there was a EMV related PoS system I was writing that needed to run on there for a customer. Selling points were

I worked on a SCO system briefly in about '02, there was a EMV related PoS system I was writing that needed to run on there for a customer. Selling points were that it ran on x86 and was Unix, basically. As a result you could have Unix on fairly cheap hardware. There was a Linux "kernel personality" you could install on SCO Unixware (IIRC), that would run linux binaries, if you cared for that. By that time it was on the way out though. You have to remember it was a transitional time - Linux was on the rise but in many people's view it hadn't yet proven itself. IBM, HP and Sun were still ruling the roost for servers, but their stuff was expensive. SCO gave people a way to make commodity x86 hardware into something server-like. Honestly it wasn't a terrible system, it just got superseded quickly and then went down in flames.