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P/N 1391401

IBM Enhanced Keyboard

Known Assembly Part Numbers
1386085
Market Model Name/Feature Code
1401
Type
Model M Enhanced PC Keyboard
OEM
IBM US, Lexmark, IBM Mexico
Earliest Appearance
1987 Q2
Original Keycaps
PBT with dye-sublimated legends
Casing Colour
Pearl White
Protocol
Set 2/AT
Connection
Cable
Cable
Grey coiled detachable SDL to PS/2 mini-DIN
Key Count
101
Form Factor
Full-size
Layout/Language
US ANSI
Additional Notes
Possible FRU part numbers include 1392090 for late IBM-made examples and 1393990 for Lexmark-made examples that were specifically sold for the IBM 4694 POS System
Data Last Updated
2022-06-10

More on this type of keyboard...

Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard
Variant of a Model M Enhanced PC Keyboard

The PC-compatible IBM Enhanced Keyboard was the first home consumer, most common and the definitive Model M keyboard, becoming IBM's choice keyboard for a decade after its release and still in production today as the Unicomp Classic. Labelled as being "enhanced" in regards to its layout that became an industry standard and is still used today (with the addition of GUI keys), the Model M is perhaps the most well-known keyboard of all time thanks to the success of the Enhanced Keyboard. The Enhanced Keyboard was also made available for IBM's earlier "classic" Personal Computer series in both XT and AT flavours, and several other distinct variants exist for other types of systems and custom orders from third-party companies such Ambra/ICPI, Dell, General Electric Healthcare and Sabre.

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