I use Windows XP.

But is anyone using Windows 2000? Windows 95? Older!???

Come on! Fess up now! You are the stalwart of technological tradition. You resist every fad that attempts to seize your hard-earned cash. You are elite and we bow at your feet.

On which computer? I still have a PC running DOS, but it just doesn't get turned on much. Most of my machines are either running XP or Vista, but I do have a VM running 98 as well.

I have an old laptop that is running Windows 98 (not even 98 SE), but I can't really do much with it and it freezes up all the time, so it's sitting in its case.

I have an ORIGINAL apple, but it's got a hard drive of about 900 MB, so I never use it. I also have a computer running Windows 95, but I rarely use it... I have a family member who pays $1 per computer. thanks to his work, so as a result, I have a ton of computers I have accumulated over the years.

You think that lot are old? WIMPS.
I have a Babbage Mark 1.
It is stream-powered (that is not a typo, I have a water wheel outside the house to provide the power.)
And I had to cast the letters in molten lead before I could type this message.