Beautiful machine! Do you have scematics for it or manuals? I really like to see those!
I retrofitted a couple of those vintage, the core memory reminds me of one run with a PDP8, you could actually 'see' 1 bit of memory!
Al. |
I have one Bridgeport BOSS 6 computer, it's processor is PDP-11 compactile. Here's picture of it:
And I have Okuma OSP2200L ( OSP2200 have Nixie tubes, L-model haven't ), and that core memory is from it. That Okuma's computer is very interesting, its based TTL-logic chips, there is no actually CPU. Most complex chip is 74181 ALU chip. I'm looking schematics for that computer, I'm planning use it flick christmas light or something like that. Here's picture of it. Those switches are used to load boot rom in to the core memory, then operation system is loaded from paper tape to core. So machine's "firmware" can be updated. Pretty cool in -79!
