I've been playing around with interupt programming and was wondering a
few things:
    1. How does the TI-OS get the input from the user?  A.K.A. If I
write an interupt    program that detects when the enter key is pressed,
how can I also tell the TI-OS that the key was pressed after I've done
my thing?
    2. Where is the ANS variable stored?
Thanks in advance !
Josejx