HP-71B handheld computer

E812225

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.

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Observed surface forms (2)

Surface form	Occurrences
HP-71B	0
HP-75C portable computer	1

Statements (57)

Predicate	Object
instanceOf	handheld computer ⓘ
canConnectTo	HP-IL interfaces to IEEE-488 ⓘ HP-IL interfaces to RS-232 ⓘ HP-IL mass storage devices ⓘ HP-IL printers ⓘ
cpu	HP Saturn processor NERFINISHED ⓘ
defaultRAM	17 KB ⓘ
discontinuationYear	1989 ⓘ
displayCharacters	22-character display ⓘ
displayType	single-line LCD ⓘ
expansionSlotCount	4 front ports ⓘ
formFactor	pocket-sized handheld ⓘ
hasBackupBattery	yes ⓘ
hasExpansionSlot	yes ⓘ
hasFeature	alphanumeric LCD display ⓘ file system in RAM ⓘ matrix operations (with Math ROM) ⓘ named variables and files ⓘ real-time clock (via module or accessory) ⓘ string handling in BASIC ⓘ user-defined functions and subroutines ⓘ
interfaceBus	HP-IL (via module) ⓘ
introductionYear	1984 ⓘ
keyboardType	full alphanumeric keyboard ⓘ
manufacturer	Hewlett-Packard NERFINISHED ⓘ
marketRegion	worldwide ⓘ
maxRAM	up to 128 KB ⓘ
nonVolatileMemory	CMOS RAM with backup ⓘ
notableUse	data collection via HP-IL ⓘ engineering calculations ⓘ scientific applications ⓘ
operatingSystem	HP-71 system firmware in ROM NERFINISHED ⓘ
powerSource	four AAA batteries ⓘ
productLine	HP calculator line NERFINISHED ⓘ
programmingLanguage	HP-71 BASIC NERFINISHED ⓘ
romSize	64 KB system ROM ⓘ
successor	HP-75 series (related handheld computers) NERFINISHED ⓘ
supports	numeric and string arrays ⓘ structured BASIC with subprograms ⓘ user-written LEX (language extension) files ⓘ
supportsLanguage	BASIC ⓘ
supportsModule	Curve Fitting ROM module NERFINISHED ⓘ FORTH/Assembler ROM module ⓘ Finance ROM module NERFINISHED ⓘ HP-41 Translator ROM module NERFINISHED ⓘ HP-IL interface module NERFINISHED ⓘ Math ROM module NERFINISHED ⓘ RAM modules ⓘ ROM modules ⓘ
supportsNumericType	binary, octal, hexadecimal (via modules) GENERATED ⓘ complex numbers (via modules) GENERATED ⓘ integers GENERATED ⓘ real numbers GENERATED ⓘ
targetUser	engineers ⓘ scientists ⓘ technical professionals ⓘ
wordSize	4-bit nibble architecture ⓘ

Referenced by (2)

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

HP-IL interface → usedWithDevice → HP-71B handheld computer ⓘ

this entity surface form: HP-75C portable computer