Most early machines had core memory. If they hadn't crashed crashed it, the bootstrap was still in memory. I crash my core regularly. Dwight
________________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Swift Griggs <swiftgri...@gmail.com> Sent: Tuesday, May 24, 2016 9:54:17 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Front panel switches - what did they do? On Tue, 24 May 2016, Charles Anthony wrote: > Honeywell 6180 display panels: > http://jimsoldtoys.blogspot.com/2016/03/honeywell-6180-system-maintenance-panel.html Holy rocker switch, Batman! Is that all for one machine? That looks like a man-machine interface to run a nuclear power plant or something. FOUR panels. The black panel looks uber-cool. That definitely looks like something from a 60's or 70's James bond film. There needs to be a villain about ready to launch a missile standing next to one. Oh and here is a replica of an Apollo launch computer with a component LED display like I was mentioning: http://i.imgur.com/bbXZVcx.jpg ... probably too expensive to embed in a computer system, but still hard to beat for geek aesthetics. -Swift