[GreenKeys] [External] Teletype Corp. LSI key fob

[Jones, Douglas W]

From: Duncan Brown [duncanancy at earthlink.net] --  Friday, March 27, 2020 12:37 PM

> A friend found this key fob of a Teletype Corp LSI chip....  Anyone know anything about it?

Search engines are your friend.  From:
-- https://books.google.com/books?id=MxymAgAAQBAJ&pg=PA132&lpg=PA132

It's a video controller chip from the Teletype 4400 and 4500.  Additional googling gives:
-- https://archive.org/details/bitsavers_dataproalpataproC25Teletype_11663364/mode/1up

So it's an ASCII computer terminal family circa 1984.  The key-fob is a nice one.  I have an Intel Inside fob similar to it but with a Pentium chip in it.  Also an HP souvenier in the form of an acrylic cube holding the first 32-bit microprocessor.  Under magnification, you can see that both of these souveniers are cast around quality-control reject chips, although the defects are pretty small and don't detract from the chips they display.

                Doug Jones
                jones at cs.uowa.edu