Consider the simplest possible program. 1) Can it be created and maintained without an operating system? 2a) If not, and if other programs exist in that system, is the first ready at all times to interact with the others - or at least some others? 2b) If it is ready, does it need to be prompted into interacting or can it do it haphazardly? Note: Interaction is considered to have occurred even if only a blip occurs. Excuse the ignorance. If I am in the wrong forum or website altogether, please educate me civilly. Thank you.