[Yosemitest]

Atari 800, then Atari1600, then ATI 33 DX, then another P.C. ( I forget the name), then Toshiba Satellite A75, then I-MAC.
Now you tell me what operating systems came with those,

[tacticalogic]

Atari 800, then Atari1600, then ATI 33 DX, then another P.C. ( I forget the name), then Toshiba Satellite A75, then I-MAC.

Now you tell me what operating systems came with those,

If that's what you've used then the last Windows OS you used was XP. That was the last release based on the NT core, and released in Aug. 2001.

Your expertise is about 14 years, and 3 releases and a core generation out of date.