Purpose of a "mystery key" on an IBM PC 3270 keyboard

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Music by Eric Matyas
https://www.soundimage.org
Track title: Luau

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Chapters
00:00 Question
01:05 Accepted answer (Score 173)
02:18 Answer 2 (Score 129)
03:03 Answer 3 (Score 65)
03:45 Answer 4 (Score 21)
03:59 Thank you

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Full question
https://superuser.com/questions/290814/p...

Accepted answer links:
[This page]: http://www.quadibloc.com/comp/kyb03.htm

Answer 2 links:
[IBM 6110344 keyboard]: http://www.seasip.info/VintagePC/ibm_611...

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Tags
#keyboard #keyboardlayout #history #mainframe

#avk47