When I was very young, my dad traded a motorcycle for our family's first computer, because he recognized them as being "the future". He didn't end up learning to use it very much, but I learned just enough DOS commands to play Space Invaders. Our next computer was a 386 with Windows 3.11, and that's where I really got interested. That computer and the NES probably contributed more to getting me into IT than anything else. For a short period of time in elementary school, my parents encouraged me to get straight As with a Nintendo game each quarter - they had bought several in a garage sale or pawn shop and had them hidden. Once I got in that habit, along with the interest in the computer, my nerdy tendencies were sealed.
