HP-71B handheld computer

E812225

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.

All labels observed (7)

How this entity was disambiguated

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 ⓘ
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 ⓘ
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 ⓘ
powerSource four AAA batteries ⓘ
productLine HP calculator line ⓘ
linked to: HP calculators
programmingLanguage HP-71 BASIC ⓘ
romSize 64 KB system ROM ⓘ
successor HP-75 series (related handheld computers) ⓘ
supports numeric and string arrays ⓘ
structured BASIC with subprograms ⓘ
user-written LEX (language extension) files ⓘ
supportsLanguage BASIC ⓘ
supportsModule Curve Fitting ROM module ⓘ
FORTH/Assembler ROM module ⓘ
Finance ROM module ⓘ
HP-41 Translator ROM module ⓘ
HP-IL interface module ⓘ
linked to: HP-IL interface

Math ROM module ⓘ
RAM modules ⓘ
ROM modules ⓘ
supportsNumericType binary, octal, hexadecimal (via modules) ⓘ
complex numbers (via modules) ⓘ
integers ⓘ
real numbers ⓘ
targetUser engineers ⓘ
scientists ⓘ
technical professionals ⓘ
wordSize 4-bit nibble architecture ⓘ

How these facts were elicited

Referenced by (7)

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

HP-IL interface → usedWithDevice → HP-71B handheld computer ⓘ
HP-IL interface → usedWithDevice → HP-75C portable computer ⓘ
linked to: HP-71B handheld computer
HP-71B → programmingLanguage → HP-71 BASIC ⓘ
subject linked to: HP-71B handheld computer
linked to: HP-71B handheld computer
HP-71B → supportsModule → HP-41 Translator ROM module ⓘ
subject linked to: HP-71B handheld computer
linked to: HP-71B handheld computer
HP-71B → operatingSystem → HP-71 system firmware in ROM ⓘ
subject linked to: HP-71B handheld computer
linked to: HP-71B handheld computer
HP 82161A Digital Cassette Drive → designedFor → HP-71B computer ⓘ
linked to: HP-71B handheld computer
HP 82162A Thermal Printer → supportsDevice → HP-71B ⓘ
linked to: HP-71B handheld computer