13 Feb
2015
13 Feb
'15
3:52 p.m.
On 2015-Feb-13, at 2:56 PM, Tom Sparks wrote:
On 14/02/15 08:20, Brent Hilpert wrote:
Just an opinion, but the Zusie / Z3 recreation ref'd by Pontus looks most interesting,
if one wants to do an historical design vs. something novel.
The Zusie site mentions the Z3 recreation in Germany.
With a few recreations of the same machine there's the potential to benefit from
community software development.
The Zusie fellow sure was fortunate to obtain a large quantity of good relays at scrap
prices.
I've long been interested in building a relay computer but that's one of the
stumbling blocks - relays new are so pricey today.
Had in mind a physical implementation much like the Zusie, upright front-access 19"
relay rack with an LED per relay to show state (and many blinkenlights).
On 2015-Feb-13, at 1:40 PM, Tom Sparks wrote:
that website looks familiar,
thats it, the memory core write up
bookmarked and added to my wget queue :)
I've been bouncing around the idea of
building my own relay computer
* I have mostly inspired by the TIM project[1] and Harry Porter's Relay
Computer[2]
* I am looking at having a limited number registers like the 6502 or 6800
* the computer is going to be Harvard architecture based
I wondering have any of use done anything like this?
[1] http://www.northdownfarm.co.uk/rory/tim/
[2] http://web.cecs.pdx.edu/~harry/Relay/
I've examined and written about (and done some limited implementation of) Simon,
which is Harvard architecture.
http://www.cs.ubc.ca/~hilpert/e/simon/index.html
Due to it's limitations I haven't been all that enthused about fully constructing
it however.
It could perhaps be expanded into something more interesting.
There's another relay computer design and implementation here which looks
interesting:
http://www.electronixandmore.com/projects/relaycomputertwo/index.html
I did bookmark and download electronixandmore website