My first was either a Gameboy Advance SP or PS1. I got the GBA when I was 5, but my Dad also had a PS1 in his house which we played a lot. I think I might have played the PS1 first, when I was 3 or 4. Also played a fair amount of PC games at my dad's. I had an old fifa game on GBA which was really simple thinking back, but I liked it.
Got a PS2 slim for my 7th birthday, in 2005.
Got a DS a year later Diamond was my first pokemon game and I absolutely loved it. Played lots of shovelware games I'm pretty sure
Got a PSP a year after that, had some good times.
Mum bought a Wii for the family in 2007 for christmas, she got caught up in the hype. We loved playing wii sports and wii fit together as a family, and I played loads of Mario Kart and Mario and Sonic at the olympic games with my friends
Got a PS3 slim in 2010, for christmas I'm pretty sure. I remember I was obsessed with Black Ops since that was the game I got, played pretty much nothing else for months. Got Uncharted 3 and liked it a lot.
Since then I've got every nintendo/ sony machine except wiiU pretty much around launch. Got the vita and 3ds I think one year late.