1989 IBM model M (1391401) Made by IBM with APL keys

SKU: 3826744 Category:

Description

part# 1391401
serial# 3826744
date 08 MAY 89
IBM logo black logo on white background
cable removable, coiled cable, ps/2 connector (used cable, standard length)
key caps removable (two piece, key stem + key cap)
key switches clicky = buckling spring
Designed when “real” typing on a quality keyboard was a required skill to use a $5000 IBM personal computer.
(pre-dates the then new mouse-click and graphical user interface operating system later to be known as Microsoft Windows 3.1 and 95)
condition Keyboard pre-selected as good candidate and passed initial testing to confirm mechanical condition.  Upper keyboard case disassembled and individual 101 keys have been removed and fully cleaned by hand.  Inspection of interior plate.  Any missing rivets drilled out and replaced with M2 precision screws to restore internal integrity.  Interior plate vacuumed to remove foreign debris.  Keyboard re-assembled and re-tested post-cleaning. Individual photography of rear label.
comments Keyboard has custom APL programming language key set
comments This keyboard is tested to work 100%.
comments

 

 

Additional information

Weight 7 lbs
Dimensions 24 x 12 x 3 in

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