The three half-generations of computer users

I'm having an interesting reminisce with Helen on IM, part of which I'll quote. She said:

You're from the "I learnt to program on a computer who you fed program in using an audio tape" generation. I'm from the "I discovered the internet and suddenly the computer was really, really interesting" generation. My workmate is from the "yeah.. the internet.. haven't they always had that?" generation

Quite.