... make a ... accomplishment, and it ... regard than my LEGO ... folks might also be interested ... Hello Brian and everyone else in this group. I joined just...
For some time now, I have been thinking of building a DC-1 from scratch out of Masonite, cardboard bookboard stock or sheet plastic. I see that others have...
I purchased the cardboard model. It is not really functional, just a model. You may use it as a template to create a working model from sturdier materials. ...
... a model. You may use it as a template to create a working model from sturdier materials. ... Hello Gerard, My understanding is that the cardboard model...
If you go to the MindsOnToys site, you see that Tim (the maker of the DigiComp v.2) figured it out, probably from looking at a copy of the original assembly...
... How about trying to create a model with *four* digits instead of three? I wonder what the upper limit would be? Given the stress on the materials and...
If you really wanted to get serious with this, how about creating a 2 bit cascade-able unit. It might be the first scalable mechanical digital computer!...
IIRC the original prototype was 'circular' and they straightened it out because they felt they could sell it better that way. Maybe the original was easier to...
... konrad zuse built a fully operational mechanical digital computer just before world war 2: http://en.wikipedia.org/wiki/Z3_%28computer%29 ... the story...
IIRC: "If I remember correctly". I had to look it up. That one might be handy if I can remember it. :-) From Msg. #178: "The original model used six...
Hello, last month I purchased at Ebay a strange little device which seems to be a distant relative of the Digicomp II. I put a short description and images...
... Google is our friend! <http://www.computermuseumgroningen.nl/bobcat/bobcat.html> More photos and apparently complete instruction manual scans. Dave...
Thank you for finding this! I didn't know it was produced. I don't have my research files with me, but the machine was patented and doesn't appear to be...
Great Britain patent 53,755/70 Nov. 11, 1970. US patent 3,747,844 July 24, 1973 (filed Nov. 11, 1971) Inventor: Phillip (Pip) Robert Vassar Youngman The US...
... Agreed! Thanks for this, I'd not run across this either, and it looks interesting. Rats. something *else* have to build out of LEGO <grin>... -- Brian...
I've looked into this a bit. Quick summary of inventor Pip Youngman's reminiscence of BOBCAT's development process, for those of you who havene't looked at ...
... connecting ... reducing ... From what I can gather, the kit makes an actual working model, so all of the proportions and dimensions should be correct for...
Hi there. I aquired a Digicomp I as a ten year old in 1969, and was completely absorbed with it. I loved the way a problem like the game of Nim could be...
Welcome to the group! Many of us have the feeling you describe, where we saw the flowchart for Nim and understood how it could be reduced to just a few...
Just look at the prices the Digicomp I commands on eBay. That should show you that there are still people around with memories of it as loving as yours! As far...
I just picked one up on eBay last night for a Very good price! I'll be able to compare it with the cardboard model. When I was a kid, I used to see the...
US $39.89? That's peanuts for one of these! Neil ... From: titofai I just picked one up on eBay last night for a Very good price! I'll be able to compare it...
I was so impressed by paper goats demonstrating logic functions that I bought the and-goat. The quality of the art is good, but I haven't had time to build it...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
