----- Original Message ----- From: "Christian Corti via cctalk" <cctalk@classiccmp.org> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk@classiccmp.org> Sent: Thursday, June 08, 2017 4:08 AM Subject: Re: rectangular sense core vs. diagonal
> On Wed, 7 Jun 2017, Paul Koning wrote: >>> How is ECS constructed? I fooled with a lot of it back in the day, but >>> never got a good look at the core planes. >> >> I'd love to know. I never saw the insides of ECS. There are some >> documents on Bitsavers but none that I have seen show the ECS memory >> subsystem itself, certainly not at the circuit level. > > I got two ECS modules, I put pictures of them on my FB album. I've > also put them on our server right now, at > ftp://computermuseum.informatik.uni-stuttgart.de/cdc/ecs/ > > The core planes are *huge*, about 4000cm² ! > > Christian -------------------------- Another reason why things were better in "The Good Old Days": While removing a (spring-loaded) microSD card from a tablet yesterday my fingernail slipped and 32 Gigabytes of data shot out and disappeared somewhere among the dust bunnies behind my desk; that could never have happened with these core modules!
