The Steampunk Forum at Brass Goggles
October 24, 2017, 08:54:18 am *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
News: Brassgoggles.co.uk - The Lighter Side Of Steampunk, follow @brasstech for forum technical problems & updates.
 
   Home   Blog Help Rules Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Physical logic: ZX-1881?  (Read 817 times)
Prof. Brockworth
Snr. Officer
****
United Kingdom United Kingdom


Choppy Warburton rides again!


« on: August 27, 2007, 11:08:05 pm »

Years ago as a little nipper, I made some physical logic gates out of Lego.  They're not hard to do on their own: input levers and output lever(s), and little seesaws or X-shaped dinguses inside to make the workings.  I've always wanted to scale it up, to something like a ZX-81.  And immediately I think of Colossus, and the other valve-monsters of Bletchley Park, and it all seems a bit daunting.

How does the small-scale logic architecture relate to large-scale operations?  Is there such a thing as the AND-OR-NOT-NAND-gate map of a Z80 processor?  Or have I been at the brazing flux again..?
Logged

Recovering from pennyfarthing bruises...
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.20 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!
Page created in 0.023 seconds with 17 queries.