<reminisce> When I started out we had to make our AND gates out of TTL 7400 NAND gates. IIRC most gates were constructed from 7400 NANDS </reminisce> <reminisce id="2"> And almost every device had at least one NE555 timer in it. What's more no-one had dreamt of XML, let alone the miriad abuses of it one finds in current IT practice. </reminice>