On Tue, Dec 08, 2015 at 09:42:27PM +0000, Rich Alderson wrote: > > Flip Chip technology was invented for the PDP-7, after the failure of the > large System Modules used in the PDP-6. The only part of the PDP-7 which > uses System Modules(TM) is the DECtape controller for the 555 DECtape > drives.
After posting I had a nagging feeling I was wrong. I recall seeing both System Modules and flip chips(light blue?) in relation to PDP-7. Thank you for clearing that up. What where the failure(s) with System Modules in the PDP-6? cost? reliabilty? > If you'd like to visit the museum, I'll happily show you the internals of > a running PDP-7. :-) Oh yes! If/when I cross the atlantic you will have to show me internals of _everything_. Can you buy a five-day pass? :-) Thanks, Pontus.