30 Mar
2021
30 Mar
'21
9:37 a.m.
John P. Linderman [30.03.2021 00:29]:
In common to both schemes is that each both styles
had 132 hammers
and when the proper character was in the position needed, the hammer
fired to make an impression the ribbon on the paper, which was
caused the noise people associated with computer printers. The
high-end IBM 1401 had a hydraulic cover that came down over it and
was controlled by the channel processor (it would auto-open when it
needed to be serviced - like a new box of paper).
This led to the "first commandment of fancy printers": Thou shalt not
leave thine coffee on top of the printer. -- jpl
A former co-worker told me he had once placed a deck of punched cards on
top of such a printer...he didn't do it a second time.
--
Hilsen Harald