Well, I'm told one's Jewish'ness is passed on through the mother's side of the family.
My mother's maternal great grandmother was jewish.. as was her husband.
My mother's maternal grandmother was jewish
My mother's mother is jewish
Which makes my mother jewish
So therefore I am Jewish... Just not raised in the faith.
And my kids won't be Jewish (if I have any) unless I marry someone Jewish.
I just found this out recently
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R
The Progression of Computer Media