What are these IBM 'thingys'

William Donzelli wdonzelli at gmail.com
Tue Oct 26 23:14:13 CDT 2010

> and patented the "brush against brass roller".  That resulted in a few
> matrix readers, soon followed by CDC and others finally getting around to
> making light-and-photocell readers, that so out-performed IBM's readers
> that it significantly strengthened IBM's competitors.

I am not sure I would agree - IBMs card handling was pretty superior
(2501, 2520, 3505/3525) to everything else, until the Documations came
into play. For example, look at sorters - the last man standing by a
long shot was the 083.


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