Few quick facts i remember right now, without chronological order.
Playing Space Invaders, PARSEC and typing some Basic Programs in the Texas Instruments TI99
The first time typing in the C64 and loading some programs from the C=1541
First time typing Basic Programs in the Atari 600XL
The first time connecting the Atari 5200 and play Star Raiders
The first time conecting to any BBS from my C64 and Atari 8Bit on 300 bauds
The first time i played Test Drive, Defender of The Crown, International Karate and California Games in my C=64
The first time i played H.E.R.O in the Atari 2600
The night when came my first Amiga 1000
The first i played Test Drive II, Stunts Car Racing, Lotus Turbo Sprit, Barbarian Palace, Sensible Soccer, in Amiga
The first time when i start to use Sonix Amiga Music Soft.
The first time when a saw Graphic Web Browsing in my A1200, middel 90s.