Re: Old core memory system.

SDS built a 24 bit system with Parity too, the CDC 924 was 24bit, there were a few others and I believe but can not recall for sure, a navy 24 bit maybe done by ERA. bb On Sat, May 5, 2018 at 2:32 PM, Chuck Guzis via cctalk wrote: > On 05/05/2018 10:23 AM, Pete Lancashire

Re: Old core memory system.

On 05/05/2018 10:23 AM, Pete Lancashire via cctalk wrote: > Core temp was a big issue even in commercial environments. You didn't see > it temp but you would see core [driver] current. The early IBM 7000 series (7070, 7080, 7090) kept core in a temperature-regulated oil bath. Later versions used

Re: Old core memory system.

On Sat, May 5, 2018 at 1:23 PM, Pete Lancashire via cctalk wrote: > Core temp was a big issue even in commercial environments. You didn't see > it temp but you would see core [driver] current. Every DEC corestack I've seen at least has a thermistor to handle the normal

Re: Old core memory system.

On 5/5/2018 10:23 AM, Pete Lancashire via cctalk wrote: Core temp was a big issue even in commercial environments. You didn't see it temp but you would see core [driver] current. My 360/50 panel has the ability to monitor and adjust in real time the core current. Military or extreme

Re: Old core memory system.

Core temp was a big issue even in commercial environments. You didn't see it temp but you would see core [driver] current. My 360/50 panel has the ability to monitor and adjust in real time the core current. Military or extreme environment core was a bitch to keep working. I worked on a system

Re: Old core memory system.

Just found a better picture of the MIT PDP-6 core panel https://www.flickr.com/photos/mwichary/2323461568 The contents of the fortune cookie was still taped on there as of 2008 > On 5/5/18 8:57 AM, Mattis Lind via cctalk wrote: > >> I found one more google hit for FABRI-TEK: >>

Re: Old core memory system.

On 05/05/2018 04:57 AM, Mattis Lind via cctalk wrote: It could be flight control related since it is aviation museum that currently have it. Hmm, 'stack heater' caught my eye... I'm not particularly familiar with core setups, but I didn't think that was a common thing, suggesting the

Re: Old core memory system.

On 2018-May-05, at 2:57 AM, Mattis Lind via cctalk wrote: > Can anyone tell what kind of computer this might have been connected to? > > https://i.imgur.com/IC3AVCf.jpg > > I googled MS8192X26-1.9-RT and found one hit: > > http://www.nsn-now.com/Indexing/ViewDetail.aspx?QString=7025013480747 >

Re: Old core memory system.

On 5/5/18 8:57 AM, Mattis Lind via cctalk wrote: > I found one more google hit for FABRI-TEK: > http://ljkrakauer.com/LJK/60s/moby.htm Interfacing it with a PDP-6. There should be a bunch of info on the net, Fabri-Tek made a LOT of OEM core memory units. I have one for a PDP-8/I Also, that

Re: Old core memory system.

2018-05-05 17:20 GMT+02:00 Jon Elson : > On 05/05/2018 04:57 AM, Mattis Lind via cctalk wrote: > >> Can anyone tell what kind of computer this might have been connected to? >> >> https://i.imgur.com/IC3AVCf.jpg >> >> The panel just SCREAMS military. A lot of outfits

Re: Intel 3000 series

On Fri, May 4, 2018, 20:39 allison via cctalk wrote: > On 05/04/2018 09:16 PM, dwight via cctalk wrote: > > I'm not sure how much good a 2900 assembler would be for a 3000 series > part. The 2900 has an address controller more like a typical micro > computer, while the

Re: Old core memory system.

On 05/05/2018 04:57 AM, Mattis Lind via cctalk wrote: Can anyone tell what kind of computer this might have been connected to? https://i.imgur.com/IC3AVCf.jpg The panel just SCREAMS military. A lot of outfits (CDC,Burroughs, IBM, Honeywell) made systems for the military. Likely, the back

Old core memory system.

Can anyone tell what kind of computer this might have been connected to? https://i.imgur.com/IC3AVCf.jpg I googled MS8192X26-1.9-RT and found one hit: http://www.nsn-now.com/Indexing/ViewDetail.aspx?QString=7025013480747 And then FABRI-TECH (maybe miss-spelled) gave a nice broschure: