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P/N 1386965

IBM Function Key Keyboard

Type
Model F Functional Key Keyboard
Nickname
Unsaver
OEM
IBM
Switches
Alps buckling sleeves
Earliest Appearance
1985
Key Count
104
Original Keycaps
PBT with dye-sublimated legends
Casing Colour
White
Branding
IBM silver square badge
Feet
Dual-setting Model F-style riser feet
Connection
Set 3 over DIN (240)
Layout/Language
ISO
Additional Notes
Comes with blue-legend F1-F10 row, non-inverted T-nav and numeric keypad secondary legends in the middle of the alphanumeric block

More about this type of keyboard...

Variant of a Model F Functional Key Keyboard

The so-called "unsaver" is the tenkeyless and original version of IBM's Functional Key Keyboards, made available for the IBM 3290 Information Panel and IBM 5080 Graphics System. It comes with both an XT-style 10-key function bank to the left of the alphanumeric block and a 24-key "PFxx" function key block above the alphanumeric block. The term "unsaver" describes the oxymoronic nature of this being a space-efficient design of an ever-larger keyboard despite the fact these are still as large as full-sized keyboards. These also feature two-setting feet, and their ISO-like layout likely played a role in cementing its usage with the later Model M keyboards.