This is a little off topic, but I was wondering if anyone knows of good sites that have info on building a simple computer from relays? I recently won 17...
1036
pasodad@...
pasodad
Apr 3, 2005 7:42 am
I don't know of any sites with plans for a relay computer. There has been a lot of discussion here. You could search the archives for "relay." -Bob S. In a...
1037
sven
molslaan
Apr 4, 2005 11:24 am
You can't do much with 17 relays. Zuse needed over a thousand (http://www.epemag.com/zuse/part4a.htm) Possible you can make simple games with them, like pong ...
1038
Neil Morrison
neils_morr
Apr 4, 2005 8:25 pm
... From: "sven" <sven2000@...> ... Radio Shack sold a toy computer which had 10 multi-pole switches and could solve many simple problems. It worked...
1039
sven
molslaan
Apr 5, 2005 12:00 pm
... could ... You might ... Yes, you're right, I'm sorry. I also remember the minivac, which had only 6. I'm not sure what it could do, but I agree it can...
1040
hudsonco1@...
mrjazzytampa
Apr 6, 2005 4:26 pm
Since we are discussing antiquated means of switching, does anyone have any experience with using vacuum tubes as switches, and does anyone know if these sorts...
1041
Paul Anderson
wackyvorlon
Apr 6, 2005 4:49 pm
... I do know that outfits like Svetlana are still manufacturing new tubes. -- Paul Anderson wackyvorlon@......
1042
Dale
dtchisholm
Apr 7, 2005 5:26 pm
You're getting into technology that's over half a century old. Constructing logic elements from vacuum tubes was already antiquated when I started learning...
1043
Scott Trapp
spamm_trapp
Apr 7, 2005 8:08 pm
... I believe that microwave-frequency components are still made with tubes --- such high-speed transistors are fairly new --- so you might be able to pick up...
1044
sharrisoncarter
Apr 29, 2005 6:13 am
Nearly a year ago Pasodad and I discussed how many clock and logic rods would be needed to generate any 8-to-8 state map. ... I have written such a program....
1045
abbydigital2
May 1, 2005 5:35 am
Hi all. Just a note to mention that I added links on the links page to two pictures on my website. One is a photo of my digicomp arranged in a strange group of...
1046
completeknowitall
completeknow...
May 9, 2005 3:58 pm
Oh, yeah, that's the old Polaroid self developing pictures. The fat white strip at the bottom had a chemical capacitor which was charged by the camera's...
1047
abbydigital2
May 10, 2005 1:27 pm
I love it! The perfect name for someone to answer that question! And exactly the answer I expected. I took a lot of pictures with my trusty Polaroid SX-70,...
1048
catbirdbatman
May 10, 2005 1:53 pm
Is it a Keystone instant camera? ... my ... site ... is ... aspect...
1049
completeknowitall
completeknow...
May 10, 2005 8:16 pm
Ouch! yeah, I kind of like the arrogant stupidity of a name like that too. considering how much knowledge is in the world for anyone to claim ownership of a...
1050
Vanlandingham, Erik
catbirdbatman
May 11, 2005 7:47 am
That was an awesome story! Erik VanLandingham Sr. IT Business Analyst Information Technology Valassis 35955 Schoolcraft Livonia, MI 48150 Tel 734.632.3827...
1051
abbydigital2
May 11, 2005 11:04 am
Nope, not a Keystone... The Llama story was so good, I'd be willing to mock-up a Llama pic with the mountains of Peru and the tail of a jet fighter so you can...
1052
Peter Holt Hoffman
peterholthof...
May 11, 2005 11:41 am
In that case I have to guess it was a Kodak; either a "Kodak Instant" or a "Kodamatic". I still have my Polaroid Swinger which I got within months of them...
1053
Neil Morrison
neils_morr
May 11, 2005 5:25 pm
... From: "Peter Holt Hoffman" <peterholthoffman@...> ... "Kodamatic". I still see those in thrifts. Hopefully only a collector would buy one. Neil...
1054
completeknowitall
completeknow...
May 11, 2005 10:16 pm
Hmmm.... in a pitiful attempt to recover lost prestige: It could be argued that because the court decided that the only difference between the polaroid and the...
1055
abbydigital2
May 12, 2005 12:54 pm
Ok, yeah, let's end this thread and get back to the plastic processor... Yes Peter, "Kodak Instant" is right, but the "Instamatic" was actually a standard film...
1056
Peter Holt Hoffman
peterholthof...
May 12, 2005 1:25 pm
Yes, the "Instamatic" was not instant but standard film. I was referring to the "Kodamatic" which was instant and not standard film (confused marketing group...
1057
dwight-watt@...
dwightwatt
May 12, 2005 2:47 pm
My second experience was in high school about same time as you but I have no idea what the computer was but we used a teletype terminal at my school to time...
1058
stephencwww
May 12, 2005 6:41 pm
Same for me: PDP-8 (2x4k I think with some kind of minimally timeshared Basic (junior high school), then a PDP-8/I with 4x4k memory running TSS/8 (high school...
1059
Peter Holt Hoffman
peterholthof...
May 12, 2005 7:36 pm
... [snip!] ... My first contact with computers was also running FORTRAN on USC's computers as an EE major in the spring of 1976! My friends had various...
1060
Dale
dtchisholm
May 13, 2005 4:33 pm
OK - I won't count the model 15 Teletype that was donated to my H.S. and a few of us dreamed of putting on-the-air as an Amateur Radio TTY device. (BTW - I...
1061
jreeves_x
May 13, 2005 5:05 pm
Maybe this doesn't count because my second computer experience was with an analog computer, but here it is. http://dcoward.best.vwh.net/analog/ford.htm and ...
1062
completeknowitall
completeknow...
May 13, 2005 6:46 pm
I saw one of those on the SS Carl Vincen Air Craft Carrier back in 99 or 2000. My brother had a programming post on the Carl Vincen and he persuaded one of...
1063
Dale
dtchisholm
May 13, 2005 7:22 pm
... I think you'll find the same sort of technology (electro-mechanical analog computing machines) in the famous "Norden Bombsight". It must have been a lot...
1064
Paul Westenkirchner
pmwestenkirc...
May 13, 2005 9:07 pm
... there are two movies of a cardboard digi comp that somone made (front and back animation) ...
