At the technical college at the beginning of the 1970's I got to know the Zuse Z-23 only. Post-graduated my activities around microprocessors began after starting my first job in a compute centre. Thereafter experiences constantly continued. Many of the µP's in those days are forgotten long ago.

1976/77Official INTEL 8080
thereafterPersonalRCA COSMAC 1802, based upon the COSMAC ELF1 (Here as a simulator)
since 1978Official Rockwell 6502, AIM 65, PC 100, Commodore PET
Texas Instruments TMS 9900
1985PersonalZILOG Z80 (JOYCE)