The OS War

A decades long war, that has decades left to go. 

Well, the history of Apple's and Microsoft's OSs stretches back to late 1985. Although the interfaces back then aren't even close to what we have now, it's easy to see how rapid (or slow) operating system progression was. For example, between late 1992 and early '97, only one new release was made by each company, yet between 2000 and 2002 there were 6.