Sure... somewhere I have book that covered writing a full blown multi-threading "OS" in Turbo Pascal. In the late 80's I wrote a framework that allowed multi-u

Sure... somewhere I have book that covered writing a full blown multi-threading "OS" in Turbo Pascal. In the late 80's I wrote a framework that allowed multi-user games (via dial-up) to be created. Included 256 color graphics, mouse input etc... had fun fighting IRQ conflicts etc. Good times :)