The ones marked with a * i still have.
I think in this order:
C64
A500* currently own 3 of those
NES
A2000
Philips videopac g7000
Osbourne1 Amstrad x86 8086 <--- running windows 1.2 ;-)
Olivetti x86 8088
IBM X86 8086
x86 intel Pentium 133
C128d
PS1 *
PS2 *
Mac Portable *
Classic Mac
Sharp computer something * <--- do not recall the model
A1200*
Sun sparcstation 5*
And a bunch of other x86 boxes..
I sadly was young and got rid of the osbourne and only afterwards found out that it was rare :-( It worked 100% and even had some office software included. I swapped it for something else, and the new owner managed to put it near some magnets, so the floppies where ruined and then it was later scrapped since there was no software.
I also got rid of the NES and PS1, but still the mac portable which is also in perfect working order with the exception of the battery.
Edit: The c128d is also one i really regret parting with.. This one was also fully functional and had a orginal commodore monitor. :-(
