CompuServe Messages

That's odd; Egghead has been selling CHAOS for at least a year in my neck of the woods, and was the first major chain to carry it. Perhaps they've got it indexed as "James Gleick's CHAOS: The Software", and not cross-referenced as just "CHAOS"? A "TSR" is a "terminate-and-stay-resident" program — a program that you run that returns you to the DOS prompt, but has some long-lasting function and so (semi)permanantly eats up some memory. Don't worry about them, though; if you start running into problems running CHAOS (like a warning saying "not enough memory"), ask here again and people will help you out. (The world of computers is sure full of opaque jargon, isn't it!)