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