HP-75D portable computer

E814966

Hewlett-Packard product portable computer

The HP-75D portable computer is a 1980s Hewlett-Packard handheld computing device notable for its expandability, programmability, and support for peripherals via the HP-IL interface.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (6)

Label	Occurrences
HP-75 series	1
HP-75 series (related handheld computers)	1
HP-75C	1
HP-75C computer	1
HP-75D	1
HP-75D portable computer canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T9632795 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: HP-75D portable computer
Context triple: [HP-IL interface, usedWithDevice, HP-75D portable computer]

A. HP-71B handheld computer
The HP-71B handheld computer is a mid-1980s Hewlett-Packard programmable calculator/computer known for its BASIC language support, expandability via modules and interfaces, and use in engineering and scientific applications.
B. Compaq Portable
The Compaq Portable was one of the first successful IBM PC–compatible portable computers, helping to establish Compaq as a major player in the personal computer market in the 1980s.
C. PDP-5
The PDP-5 was an early 18-bit minicomputer introduced by Digital Equipment Corporation in the 1960s, notable as a predecessor to the influential PDP-8 and for helping establish the minicomputer market.
D. Kaypro computers
Kaypro computers were a popular line of rugged, portable personal computers from the 1980s known for their metal cases and use in business and professional environments.
E. Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: HP-75D portable computer
Target entity description: The HP-75D portable computer is a 1980s Hewlett-Packard handheld computing device notable for its expandability, programmability, and support for peripherals via the HP-IL interface.

A. HP-71B handheld computer
The HP-71B handheld computer is a mid-1980s Hewlett-Packard programmable calculator/computer known for its BASIC language support, expandability via modules and interfaces, and use in engineering and scientific applications.
B. Compaq Portable
The Compaq Portable was one of the first successful IBM PC–compatible portable computers, helping to establish Compaq as a major player in the personal computer market in the 1980s.
C. PDP-5
The PDP-5 was an early 18-bit minicomputer introduced by Digital Equipment Corporation in the 1960s, notable as a predecessor to the influential PDP-8 and for helping establish the minicomputer market.
D. Kaypro computers
Kaypro computers were a popular line of rugged, portable personal computers from the 1980s known for their metal cases and use in business and professional environments.
E. Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
F. None of above. chosen

Statements (41)

Predicate	Object
instanceOf	Hewlett-Packard product ⓘ portable computer ⓘ
brand	HP ⓘ
category	retro computing device ⓘ vintage computer ⓘ
countryOfOrigin	United States ⓘ linked to: United States of America
designedBy	Hewlett-Packard ⓘ
era	early portable computing ⓘ
expandable	true ⓘ
feature	expandability ⓘ programmability ⓘ support for peripherals ⓘ
formFactor	handheld ⓘ portable ⓘ
hasDisplay	true ⓘ
hasKeyboard	true ⓘ
hasPeripheralInterface	HP-IL ⓘ linked to: HP-IL interface
interface	HP-IL ⓘ linked to: HP-IL interface
introductionDecade	1980s ⓘ
introductionPeriod	1980s ⓘ
manufacturer	Hewlett-Packard ⓘ
notableFor	HP-IL interface support ⓘ expandability ⓘ programmability ⓘ
powerSource	battery ⓘ
predecessor	HP-75C portable computer ⓘ
productLine	HP-75 series ⓘ linked to: HP-75D portable computer
programmable	true ⓘ
supports	HP-IL peripherals ⓘ external storage via HP-IL ⓘ other HP-IL devices ⓘ printers via HP-IL ⓘ
supportsExternalPeripherals	true ⓘ
supportsProgramming	true ⓘ
targetMarket	business professionals ⓘ engineers ⓘ scientists ⓘ technical users ⓘ
usage	data collection ⓘ field applications ⓘ mobile computing ⓘ

How these facts were elicited

Referenced by (6)

Full triples — surface form annotated when it differs from this entity's canonical label.

HP-IL interface → usedWithDevice → HP-75D portable computer ⓘ

HP-71B → successor → HP-75 series (related handheld computers) ⓘ

subject linked to: HP-71B handheld computer