I added Win NT 4.0 and under.
<< Sorry fellow AT members but the most significant windows ever released was NT....
A pure 32bits operating system, with a HAL ( hardware abstration layer) thay made
it cross platform... and with virtual machines to run 16bits code in...
2000 and XP, are only improvements of the original NT.
Just like win3.11,win9x and ME are improvements of the original windows! The first one
that run over dos, just like this ones >>
You know what, I agree totally. Windows NT really was destined to become the OS of the future ,I never doubted that. And MS had to get away from the DOS based Win 3.1, but, I really can't say that NT 3.1, or NT 4.0 even for that matter was the most significant because, they IMO were still not at a level of compatibility with mainly games where it was seen in enough places to make an impact. What killed NT 4 in terms of games was mainly the lack of 3 key features that 2000 added:
1. the latest DirectX (3.0 I believe is the highest for NT4). 2000 came with DX7 and now has 8.1
2. New Hardware support including Plug and Play, USB support, Dual Monitors, Firewire, Power Management, you get the picture?
3. Much improved general Hardware/Software Compatibility.
Windows 2000 was the first NT OS that was compatible enough in the NT series for it to be usable on most PC's (although it wasn't) and provided support for the latest hardware. That's why we see prolly about 50-75% people on the forums I'd bet are running 2000 or XP, while during the 98/NT4 era, it was prolly 98 that was in 50-75%. Not to mention the ease of use/ease of Setup of NT 4 was nowhere near where XP is. You see what I mean? Just my thoughts. I do think though that while XP/2000 are very significant, I have to agree with most that 95 totally changed how computers were viewed.