On 17 Mar 2007 at 22:28, Richard wrote:
Unfortunately,
there are no mainframe cabinets anywhere in the photo--
what you see in the foreground are 3000-series controllers, but that
doesn't mean a thing, as both the 3000 and 6000 series used 3000
peripherals for tape., card and printing. The 6000 used a 6681/2
channell converter, which then would interface to, say, a 3423 tape
controller.
What do they control?
I thought that was pretty clear from my statement. The one next to
the 415 card punch is almost certainly a 3447 (which controls the
card punch); the other cabinet *might* be something like a 3423 tape
controller (there are several varieties of tape controllers, all
looking the same, which vary in the number of channels and drives
supported).
Again, there is no positive ID of the system they were servicing,
because that isn't visible on the photo--it could be anything from a
3100 to a 6700.
Cheers,
Chuck