BBC B, with no disk drive - bought and added the interface and drive a couple of years later, when we couldn't stand tapes any longer
Then an Epson EL2 - basically a 286 PC, with some horrible early incarnation of MS-DOS, no Windows of any kind, 640k RAM and a 20MB HDD.
Then an Escom (stop laughing!) early Pentium (50 IIRC), Win 95 and I think, about 2GB HDD.
Now a classic iMac, G3-450, 20GB. Preinstalled with OS9 but now running 10.2.8 quite happily. At work I have a Dell Latitude C400 lappy, with Win 2k, P4 2GHz (I think), 512Mb RAM and 20GB HDD.
And I love nothing better than to unwind at home playing BBC games on the Horizon emulator on my Mac. So much for progress!