|Full Name||IBM Modifiable Layout Keyboard with MSR|
|Part NumberPart Number
The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc.
|Market Model Name/Feature CodeMarket Model Name/Feature Code
The consumer-friendly model number describing this keyboard as a part of a range of products, usually irrespective of target region, language or SKU.
A designation from my own type naming scheme used to categorise this keyboard with or from others by their common features and market intent but may/may not be derived from official names.
|Model M11 RPOS Modifiable Layout Keyboard|
The name of the known switching mechanism that lies under this keyboard's keys.
|IBM buckling rubber sleeves (early or late POS type)|
|Original KeycapsOriginal Keycaps
The keyboard's original keycaps' material and text/symbol printing technique.
|PBT with lasered legends|
The style of this keyboard's flip-out or extendable feet. If applicable, this may also state how many levels of height adjustment are available and whether the feet could be rubberised.
The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets).
|SIO via RS-485|
The keyboard-to-host connection. This is could be a description of a cable (its colour, whether its coiled, whether its detachable, and what connector is at its end) or the name of a wireless technology.
|Grey straightened-style detachable 8-pin SDL to 8-pin SDL cable|
|Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
About this keyboard type
The Model M11 is a 133-key point of sale ortholinear/matrix keyboard with an integrated magnetic stripe card reader in the Retail POS (RPOS) series of POS input devices. The M11 was originally known as the IBM Modifiable Layout Keyboard. Its earliest host system was the IBM 4694 POS Terminal Model 001 announced in June 1993 and it was a successor to the IBM 4680 series Matrix Keyboard. Sometimes described as a "key array", the M11 is essentially an adaptation of the M9 design where almost every key is relegendable. The only exception is the dedicated numeric keypad that all its RPOS siblings have. These could be configured with an alphanumeric layout, an entirely functional layout or a mix of alphanumeric and functional.