CodeJunkie

So when emulation comes into play this would be the adpater that DaWei mentioned..????

So am i right in assuming (Is this correct that):
A program I.e Messenger that has been downloaded of the net.. when you click its icon, firstly to ensure compatability it would contain an adapter containing most commonly used instruction sets for diffrent machines (Gets the spark that dawei mentioned) which would enable the main program in its execution... the main program would be of a standardized code that the devolepers would know works and have tested on a variety of diffrent target platforms ??

So I would assume then that emulation to diffrent O/s`s and machines would be a very advanced form of a an adapter I.e an P.c to an Amiga for example?

Just a thought but is this correct:
Some computers architecture and the way instruction sets are dealt with there in would be more inept at running certain o/s`s (i take the intel badge and designed for WinXp comes into play here) so would this mean that as intel and Windows seem to be linked, that Windows would be more designed for Intel`s architecture not AMD`s and AMD would have compatibilty issues (Hence the instability sometimes)??