> On Dec 21, 2024, at 12:41 PM, CAREY SCHUG via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> my recollection from being a computer operator at the time was the the 
> earlier 1403s did NOT have an interchangeable chain.

Interesting.  I was an occasional operator on a 360 model 44 in 1974, and it 
had an interchangeable chain.  That installation had several, including an 
upper/lower case one (TN perhaps) which I used to print one of my college 
papers (formatted with RUNOFF on a PDP-11 system, carried to the 360 on tape 
and printed there).  The printer also had a film ribbon, basically a 17 inch 
wide version of the ribbons used on Selectric typewriters for quality work.

> Also curious if any 1404 printers still exist. They were wider and you could 
> shift the print mechanism to the side where there was a mechanisms to print 
> on tabulating cards, one or two at a time.

Speaking of wider: I remember the curious line printers on the Electrologica 
computer at TU Eindhoven, where I did my first programming.  Those had 144 
columns, though I think the paper was the usual 17 inches wide.  I don't have 
any of those printouts anymore, unfortunately.

        paul

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