Display A allows two way interaction with the user through illuminated switches. Firstly they show the state of the various control lines within the computer and secondly they allow the user to manually operate those lines when the computer is in the stopped state.
Below is a list of the blog articles relating to this card (in reverse date order):
05 Nov 2017 - 8 min read
Miscellany Special: Backplane X, Cable Routing and Address Bus
Continuing on with the theme from my last post … here is another ‘miscellany special’ covering all the little ‘side jobs’ I’ve been doing …
06 Aug 2017 - 4 min read
I’ve nearly got the design for the memory cards done and ready to share but once that’s out the way it’ll be time to get on with some construction again. …
29 Mar 2016 - 4 min read
User Interface Construction: Instruction, Clock and Sequencer
Well, the good news is I’ve just passed a major milestone in constructing this relay computer … it can now perform a single instruction in full firing the various …
08 Apr 2015 - 4 min read
User Interface Design: Instruction, Clock and Sequencer
Over my last seven posts I’ve been slowly putting together the card designs so that the computer will be able to operate the MOV-8, ALU and SETAB instructions. The final …
12 Jul 2014 - 5 min read
User Interface: Display A Initial Design and Construction
Following on from working on the main data switches in my last post this time I’ve taken the first steps in designing and constructing the first of two display cards …
