[Boatanchors] IBM Selectric Terminal
James Liles
james.liles at comcast.net
Mon Dec 27 12:12:31 EST 2010
An interesting fact about the Selectric. The chrome plating process on the
plastic type head was never patented. GM, Ford, and Chrysler desperately
wanted the secret to use on their bumpers and other plastic components but
IBM would not budge. The reason that it wasn't patented was that any
process that is "valuable enough and patented will be stolen". The auto
engineers didn't crack the code for years.
It was the best output device in it's time, used by nearly every computer
vendor but a mechanical Freddy Kruger!
Not the right place for this but do any of you remember the first telecom
storage device that IBM implemented for the 1401? The sonic delay line that
could store one 132 character line of data. Was a spiral of hardened wire
housed in a 1 foot square by 1 inch container. It used a transducer to
twist the wire and another at the other end to sense the twist and re-cycle
the data with a sync character.
Last but not least, did anyone work with the 90 ohm tri-lead disaster or
virtual triplex 67's project (NASA) in upstate NY??
Kindest regards Jim K9AXN
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