IBM Model M
From Deskthority wiki
Model M was the designation given by IBM to their buckling spring over membrane keyboard design. The Model M designation is most commonly associated with the 101/102-key IBM Enhanced Keyboard, it was also the designation for the IBM Wheelwriter keypad, IBM 122-key terminal keyboards, the IBM Space Saving Keyboard and certain variants. Various other buckling spring keyboards (and even a few rubber dome keyboards) received designations of Model M with some number following them. These are listed below.
History
Common design features
Keyboards
IBM Enhanced Keyboard (Model M)
Main article: IBM Enhanced Keyboard
IBM Space Saving Keyboard (Model M)
Main article: IBM Space Saving Keyboard
IBM 122-key Terminal Keyboards (Model M)
IBM Selectric Touch Keyboard (Model M1/M2)
Main article: IBM Selectric Touch Keyboard
IBM Space Saver Keyboard (Model M4/M4-1)
IBM Trackball Keyboards (Model M5-1/M5-2)
Main article: IBM Trackball Keyboards
IBM Thinkpad Keyboard (Model M6-1)
IBM ANPOS Keyboards (Model M7/M9)
IBM Trackpoint II Keyboard (Model M13)
IBM/Lexmark Wheelwriter Keyboards (M11, M19, others)
IBM Adjustable Keyboard (Model M15)
Main article: IBM Adjustable Keyboard
