Replicas - was Re: *** Ideas needed for developing interactive

From: Vintage Computer Festival <>
Date: Mon Sep 13 12:21:28 2004

On Mon, 13 Sep 2004, Ethan Dicks wrote:

> On Sun, Sep 12, 2004 at 09:28:25PM -0700, vrs wrote:
> > > An SMT transistorized machine would be an interesting project, but hell to
> > > debug I would imagine.
> >
> > One could perhaps build it out of modules -- make SMT versions of Rxxx
> > modules, etc., then use those to build up the CPU. Then one could debug at
> > the module level before tackling the whole thing.
> One could, but the interconnection thing would be a killer - I suppose the
> cheapest way to do it might be a "fatherboard" arrangement with a nest of
> pins for the backplane, and pin receptacles on the modules (though the
> more traditional pins-on-the-module-and-sockets-on-the-motherboard would
> be about the same cost, probably). In the case of a PDP-8 design, there
> are several busses that might have to be run, but you could sort-of cheat
> and aggregate the registers (like is done with the 6 x M220 cards in an
> -8/i or -8/L) to group things together. I would expect that in addition
> to the registers themselves (AC, MD, MA...) whatever memory there was would
> fit nicely in the same area.

BTW, this would probably make for an award winning exhibit at the VCF ;)

Sellam Ismail                                        Vintage Computer Festival
International Man of Intrigue and Danger      
[ Old computing resources for business || Buy/Sell/Trade Vintage Computers   ]
[ and academia at  || at  ]
Received on Mon Sep 13 2004 - 12:21:28 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:37:29 BST