My brother and I were always very computer literate because my father was interested in computers, so we had them right since I was about four or five, so...very early 90's. It's also why everyone in my family uses the mouse with their left hands--my father is left handed and he taught us, so none of us can use it with our right hands now. But I do know I was in the minority growing up, though perhaps not now. I imagine some people just never joined the bandwagon.