Keyboard Part Number List
10 keyboards found/on record...
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
6450200 |
| Known Assembly Part NumbersKnown Assembly Part Numbers Possible numbers found inside this keyboard used to indicate its internal assembly and the keycaps on it. |
6090817 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1984 Q3 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
Layout/LanguageLayout/Language 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. |
US AT |
| Source(s)Source(s) 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. |
Web: http://kishy.ca/?attachment_id=1655 Web: https://www.modelfkeyboards.com/product/brand-new-in-box-ibm-pc-at-model-f-keyboard/ |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
6450221 |
| Known Assembly Part NumbersKnown Assembly Part Numbers Possible numbers found inside this keyboard used to indicate its internal assembly and the keycaps on it. |
6110425 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM U.K. |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1984 Q3 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
French |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
6450222 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1984 Q3 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
German QWERTZ AT |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
6450223 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM U.K. |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1984 Q3 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
Italian AT |
| Source(s)Source(s) 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. |
Web: https://web.archive.org/web/20220419185143/https://www.ebay.it/itm/175248955815 |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
6450225 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1984 Q3 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
UK AT |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
1503092 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1985 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
US AT |
| Additional NotesAdditional Notes Extra notes about this keyboard that may be of interest or are important to know. |
Technically an assembly part number but the keyboard's outer part number is currently unknown, appears to be equivalent to P/N 6450200 |
| Source(s)Source(s) 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. |
ASK: SNKB-F1985-ATT-84 Web: https://geekhack.org/index.php?topic=48288.0 Web: https://geekhack.org/index.php?topic=40599.msg806620 |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
8286165 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1985 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
US |
| Source(s)Source(s) 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 Personal Computer Family Service Information Manual (#SA38-0037-00) [source: bitsavers] |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
8223422 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1986 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
Swedish/Finnish |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
8223423 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 5170 Personal Computer AT (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1986 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black coiled-style fixed DIN (180) cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Layout/LanguageLayout/LanguageThe 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. |
Norwegian |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
4010504 |
| TypeType 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 F/AT PC 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 be terminals, desktop PCs or laptops. |
IBM 4456 TEMPEST PC IV (IBM 5170 family) |
| OEMOEM Possible companies responsible for making this keyboard for the company marketing it. |
IBM U.S. |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
IBM capacitive 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. |
1987 |
| 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. |
Pearl White |
| BrandingBranding 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 silver square badge |
| FeetFeet 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 riser feet |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
IBM scancode set 2 |
| ConnectionConnection 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. |
Black straightened-style fixed DE-9 cable |
| Key CountKey Count The number of keys that this keyboard originally had. |
84 |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Navblockless |
| Source(s)Source(s) 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 Personal System/2 and IBM Personal Computer Product Reference Version 4.0 (#102682986) [source: bitsavers] Web: https://www.worthpoint.com/worthopedia/vintage-ibm-model-tpc-iv-clicky-key-3775322502 |