IBM Model F vs Model M Keyboards

Model F vs Model M

• IBM Model F Keyboard, 1981
• IBM Model M keyboard (1985)

• both uses Buckling Spring Key Switch

• Model F, with electrostatic capacitance as electric switch. Model F were made from 1981 to 1994.
• Model M, with metal contact as electric switch.

See also:

• Affirmative Keyboard