Chris Langford wrote:
1403 printers had chains, 3211 had trains.
Both had a FOLD option to upper case on the fly.
If you care to look at the IBM archive at
http://www-03.ibm.com/ibm/history/exhibits/attic3/attic3_024.html
you will find a "chain" under the heading "IBM 1403 Printer Train".
At my installations we used the terms interchangeably (note that the
slugs in the cartridge may be considered as cars running on a track,
following the index slug, resembling a train?)
I don't remember the FOLD option being a printer feature; it was
implemented via a CCW, and could have been performed in the control
unit. I never had access to a 3203 or 3211; when the monthly maintenance
on our 1403 got to $700, we upgraded to Documation printers that uses bands.
Gerhard Postpischil
Bradford, VT
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