← Back to catalogue
Research draft

calculator

vr.tr.calculator · PHY.OBJ

Let an agent identify calculator types and their capabilities, explain how they work and what they can and cannot compute, relay examination rules and standards, and separate calculators from computers and from calculation itself.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent identify calculator types and their capabilities, explain how they work and what they can and cannot compute, relay examination rules and standards, and separate calculators from computers and from calculation itself.

A device for performing arithmetic and other mathematical calculations, from mechanical adding machines to electronic pocket, desktop, scientific, graphing and programmable calculators, and software calculators on computers and phones; calculators are regulated for use in examinations and were a milestone in consumer electronics.

What it is for: Performing calculations quickly and reliably.

It can be identify the type and capabilities; explain how calculators compute and display; relay examination and workplace rules; distinguish calculators from computers.

Distinguishing features

Dedicated to calculation

Fixed function set by type

Battery or solar powered

Regulated in examinations

What it looks like

A handheld or desktop device with a numeric keypad, function keys and a display, or an app on a screen.

Physical character

display precision: about 8-16 digits - typical

first pocket electronic calculators: early 1970s period

How it is recognised

Keypad and display dedicated to calculation

Types: basic, scientific, graphing, financial, programmable

A computer is general purpose; an abacus and slide rule are manual aids

Related models

is a kind of - the category

calculating tool

is a kind of - in its modern form

electronic device

is contrasted with - general purpose machine

computer

is preceded by - an earlier aid

slide rule

In practice

Families and kinds

basic four-function calculators

scientific calculators

graphing calculators

financial calculators

programmable and pocket computers

mechanical and historical calculators

software and online calculators

Identifiers

model number manufacturer such as FX series

Standards and regulation

Examination board rules on permitted calculators

Electrical safety and battery regulations

Accessibility standards for devices

Failure modes and hazards

Rounding and precision errors

Order of operations differences between models

Use of prohibited models in examinations

Battery hazards

Also called

HP-01calculator watchCasio FX-850PSharp PC-1262game calculatorCasio MG-885 Eight AttackCasio BG-15 Boxing GameCasio WN-100Sharp WN-100Sharp WN-102Casio AG-130taximeterCasio VL-1Citizen LC-110NVictor 95 Handheld Electronic Calculatordesktop calculatorbasic calculatorconstruction calculatorTI-2500four-function calculatorElektronika calculatorsmedical calculatorHP-12CElkaHP-27Ssolar-powered calculatorSharp EL-8Sharp QT-8Dscientific calculatorHP-55programmable calculatorfinancial calculatorIBM 6400 SeriesHP calculatorCasio CB-100 Checkbook Electronic CalculatorHP-41CHP-71Bsalary calculatorsoftware calculatorDataman

+95

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.calculator-artifact

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Identify Which calculator.

Identity.

Type

Type and capabilities.

Type

Type.

  1. What type of calculator is this, and what can it compute? definition
  2. Is the question about a calculator, a computer or calculation in general? boundary

Model

Model.

Model

Model.

  1. Which model is it, and what are its specifications? provenance
  2. Which entry fits the specific model? action
Work How it works.

Engineering.

Computation

Computation and precision.

Computation

Computation.

  1. How do calculators represent numbers and compute functions, and what precision do they have? definition
  2. Which entry fits floating point arithmetic? action

Use

Using it correctly.

Use

Use.

  1. How do input conventions and order of operations differ between models? provenance
  2. Which references are standard? provenance
Rules Examinations and workplaces.

Regulation.

Exams

Examination rules.

Exams

Exams.

  1. Which calculators are permitted in examinations, and where are the rules published? provenance
  2. Which entry fits examination regulations? action

Professional

Professional use.

Professional

Professional.

  1. How are financial and scientific calculators used professionally? provenance
  2. Which entry fits financial mathematics? action
History History and education.

Context.

History

History.

History

History.

  1. How did calculators develop from mechanical machines to electronic and software forms? provenance
  2. Which entry fits the history of computing? action

Education

Calculators in teaching.

Education

Education.

  1. What debates exist about calculators in mathematics education, with positions attributed? provenance
  2. Is the presentation neutral? boundary

What the second pass must settle

  • Should graphing calculators be a separate entry?
  • How should examination rules be linked?
  • The registry entry has merged aliases naming specific models; should they be split off?
Draft as JSON