|
gptkbp:instanceOf
|
calculator
|
|
gptkbp:accessories
|
card reader, printer
|
|
gptkbp:batteryLife
|
up to 2 years
|
|
gptkbp:collectibility
|
high
|
|
gptkbp:colors
|
black
|
|
gptkbp:compatibleWith
|
third-party software
|
|
gptkbp:currentCoach
|
varies based on condition
|
|
gptkbp:dataUsage
|
magnetic cards
|
|
gptkbp:design
|
compact and portable
|
|
gptkbp:developer
|
moderate
|
|
gptkbp:dimensions
|
5.5 x 3.1 x 1.0 inches
|
|
gptkbp:educationalPrograms
|
available online
|
|
gptkbp:endOfProduction
|
1989
|
|
gptkbp:expansion
|
yes
|
|
gptkbp:features
|
RPN_(Reverse_Polish_Notation)
|
|
gptkbp:hasCapacity
|
no
yes
|
|
gptkbp:hasOccupation
|
active online community
|
|
gptkbp:historicalImpact
|
pioneered programmable calculators
|
|
gptkbp:historicalSignificance
|
popular among engineers and scientists
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
HP 41
|
|
gptkbp:inputOutput
|
QWERTY
alphanumeric keypad
keypad_input
|
|
gptkbp:isATypeOf
|
scientific calculator
|
|
gptkbp:keyEvent
|
CES 1979
|
|
gptkbp:language
|
gptkb:HP_41_programming_language
|
|
gptkbp:legacy
|
influenced_future_HP_calculators
|
|
gptkbp:manufacturer
|
gptkb:Hewlett-Packard
|
|
gptkbp:market
|
$495
|
|
gptkbp:marketSegment
|
professional and educational
|
|
gptkbp:model
|
gptkb:HP_41CV
gptkb:HP_41C
gptkb:HP_41CX
|
|
gptkbp:monitors
|
LED
LED technology
14 digits
|
|
gptkbp:notableEvent
|
yes
up to 4000 bytes
|
|
gptkbp:notableUsers
|
NASA_engineers
|
|
gptkbp:powerOutput
|
numeric and alphanumeric
|
|
gptkbp:powers
|
battery
|
|
gptkbp:primaryUser
|
available online
|
|
gptkbp:productionCompany
|
visual display
|
|
gptkbp:RAM
|
up to 1000 program steps
|
|
gptkbp:releaseYear
|
1979
|
|
gptkbp:successor
|
gptkb:HP_42S
|
|
gptkbp:supports
|
community forums
|
|
gptkbp:type
|
programmable calculator
|
|
gptkbp:user_interface
|
magnetic card reader
|
|
gptkbp:userBase
|
engineers, scientists, students
|
|
gptkbp:weight
|
0.5 kg
|