It's like looking at the evolution of man...only faster and more obvious

I came in at windows 3.1

What is KDE?

K Desktop Environment, a Graphical User Interface that runs on linux.

I don't believe windows 1.0 and 2.0 were available to the general public though i was in during the windows 2.0 timeframe. I think it was DOS 3.3 that I used then. Kinda funny to think that dos has a totally different meaning now. Was "Disk Operating System" now it is "Denial of Service". Anyway, just found a great version history of dos: http://clipmarks.com/clipmark/2E6BCB82-BDBD-419F-90D0-E4E16EE8CD0A/

Their missing a few other OSes and/or windowing environment like CP/M, AmigaOS, GEM to name a few.

@skwirlinator KDE stands for Killer Desktop Environment... at least if you talk to some Linux afficianados.... just kidding.

oops, meant to say 'they're'

Desktops!!! anyone other than me remember the days before mice?
(BTW my first mouse was hooked up to a C64 and provided a full desktop in 64k... nowadays a pc needs >64k for the mouse driver)

Absolutely... I took computer classes just so I could play a game on TRS-80 and that's definitely before mice

I vaguely (very vaguely) remember CPUs that were put in a horizontal direction.

When was that.

I did computer studies at school (circa '85) and although we were able to look at pictures of computers we never actually touched one.

Fortunately I'd started on the ZX81/Spectrum/Atari journey in 1983. (I remember typing basic programs into the ZX81 with its keyword membrane keyboard and the thing would run out of memory after about 2 hours of 'typing'.)

computers I've used

ZX80, ZX81, Spectrum
Acorn Atom (same people that later made the BBC computer)
Atari
Amiga
Commodore Pet 4000 series, 9000 series
BBC A, BBC B, BBC Master, BBC Compact ...
Gem (prior to Windows)
Archimedes, RISC PC (*)
Windows 3.1, 95, 98, XP (generic hardware)
various Apple / Mac (last being the OS 8)

* the RISC PC (imho) had the best OS - behind the GUI was very organised and easy to maintain