On Thursday (03/17/2016 at 10:04AM -0500), Kyle Owen wrote: > On Thu, Mar 17, 2016 at 1:43 AM, Eric Smith <space...@gmail.com> wrote: > > > > Unfortunately I do not, but I've recently become interested in such > > things, as I have received from a friend's estate an old board from an > > embedded system (possibly a cash register) which has a 4040 CPU. > > Photos here: > > > > https://www.flickr.com/photos/22368471@N04/sets/72157665878868081/ > > > Wow, an engineering sample 4040. Very nice. Highly sought after by those > CPU collectors out there. You should be abel to build a nice system from > that. No telling what those hybrid packs did. Can't say I've come across > many 4004/4040 designs with such devices.
I too have an engineering sample i4040 from 1975 (7504 date code). I found it in the attic of the place I worked while in high school in 1979. I saved it along with a second non-ES device all these years. Recently, I got the bug to see if either of these parts were still good and so I bought one of these, http://www.cpushack.com/mcs-4-test-boards-for-sale/ and sure enough, both 4040s are still good and run just fine on this test board. So count me in for collecting and sharing 4004/4040 code and simple system designs. This test board is a pretty simple design but there's still something fun about hand wiring a board, writing a little monitor and bringing it up to talk to a teletype ;-) Chris -- Chris Elmquist NØJCF
