|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 M Enhanced Industrial Keyboard|
|Known Host SystemsKnown Host Systems
A list of known host systems this keyboard could be bundled with or at least designed specifically to operate with. This could terminals, PCs or laptops.
|IBM 7541 Model 011 Industrial Computer
IBM 7541 Model 111 Industrial Computer
IBM 7542 Model 011 Industrial Computer
IBM 7561 Model 011 Industrial Computer
IBM 7561 Model 111 Industrial Computer
IBM 7562 Model 011 Industrial Computer
IBM GEARBOX Model 800 (Feature 040)
IBM GEARBOX Model 800 (Feature 150)
Possible companies responsible for making this keyboard for the company marketing it.
The name of the known switching mechanism that lies under this keyboard's keys.
|IBM membrane buckling springs|
|Earliest AppearanceEarliest Appearance
The year (and possibly the quarter) that this keyboard part number was introduced, first observed, first recorded or the first example found.
|Original KeycapsOriginal Keycaps
The keyboard's original keycaps' material and text/symbol printing technique.
|PBT with dye-sublimated legends|
|Casing ColourCasing Colour
The original colour of this keyboard's outer casing. For keyboards whose casing materials are known to yellow, this will refer to the original colour before such transformation occurs.
The possible branding and logo styles found on this keyboard part number. This could be multiple styles at once or possible styles found over time.
|IBM black oval badge|
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.
|Single-setting flip-out feet|
The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets).
|IBM scancode set 2|
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 coiled-style detachable 6-pin SDL to PS/2 mini-DIN cable|
|Key CountKey Count
The number of keys that this keyboard originally had.
|Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
The original regional/language layout this keyboard was configured as. Both the language and the standardised key layout may be listed, and in the case of both being known or defined, it will be styled as language then standard.
Documents ("Doc"), websites and/or webpages ("Web") that were used as a source of information for this keyboard part number. Examples of this keyboard part number I own ("ASK") will also be included as sources.
|Doc: IBM 7561 Industrial Computer Model 011, IBM 7561 Industrial Computer Model 111 & IBM 7562 Industrial Computer Model 011 Brief Description of Announcement, Charges, and Availability (#ZG89-0141) [source: IBM]
Doc: IBM 7541 Industrial Computer Model 011, IBM 7541 Industrial Computer Model 111 & IBM 7542 Industrial Computer Model 011 Brief Description of Announcement, Charges, and Availability (#ZG89-0142) [source: IBM]
Doc: GEARBOX Model 800 Industrial Computer Brief Description of Announcement, Charges, and Availability (#ZG89-0248) [source: IBM]
|Data Last Updated||2023-10-31|
More on this type of keyboard...
The Model M industrial keyboards were the first discreet and PC-compatible Model Ms available, originally shipping with the AT-class IBM 7531 Industrial PC starting in May 1985. Compared to the IBM Enhanced Keyboard, industrial Model Ms are essentially the same underneath but feature a grey-coloured case designed to hide the dirt and damage expected to be inflicted upon the device within an industrial environment.