i'm new to mac. got my mac this afternoon. could someone explain the .dmg file. i understand what it stands for but can i just delete it once the program has been installed? in windows terms, all i can gather is that its kinda like a zip and installer exe file in one. i may be way off. i did a search but couldn't get a clear answer. i also saw the term "mount". what exactly does that mean? if someone can give me an explanation in windows terms, that would be even better ie; what is the windows equivalent if any. thanks a lot!