Re: [tlug] Call for presenters Apr 19th

["Stephen J. Turnbull" <turnbull@example.com>]

 > The small project therein is building a full 16-bit computer from
 > just NAND gates (and a DFF for sequential logic) in a hardware
 > simulator using a simplified HDL, then building an OS on top of it
 > and finally writing Tetris. I've only finished the first half so
 > far, but it's a great way to get into HDL and learn how computers
 > *really* work. :)

Ah, you youngsters and your digital sims!  I learned how computers
work tracing logic gates on a piece of paper with my father, once with
a 64x64 plane of core memory sitting next to it on the kitchen table.
Building half- and full-adders on paper.  Then diving into the physics
of NPN and PNP and hysteresis in flip-flops, all on paper.  Wouldn't
touch a user-programmable electronic device for another 6 years!

Steve