zx spectrum then tandy trs 80 (still have them and both still work)
Followed by commodore, vic20, then the IBM clone's i.e. 286,386,486 66mhz,486 dx 100 , pent11, pent 111, AMD xp2000 and now 2 x AMD Athlon 64 3700 ,1gig ram, 120gig h/d, 256mb nvidea 6800 ultra.
Regards
Mike