&#62;I hesitate to call something like this an operating ....<p>&#60;humor&#62;
Why not?  If Microsoft can call Windows versions before Win 95 an operating system, I think this qualifies. ;-)
&#60;/humor&#62;<p>In all seriousness, if there's no task scheduler or multitasking capabilities in this software (and I must admit I haven't poked at it enough to determine whether there is or not), it's not much of an operating system.  It kind of reminds me of when I was 12 and thought I'd make an "operating system" using QBasic.  (What I ended up with was little more than a glorified text-based, menu-driven program launcher.  But, hey, I was 12.)