calculators
Pocket arithmetic machines
Calculators are devices that perform mathematical operations.
The term usually means electronic calculators—handheld or desktop devices with number pads and displays for arithmetic and beyond.
Before electronics, calculators were mechanical devices with gears and levers.
Calculator can also mean a person who calculates, often implying shrewdness: a cold calculator of political advantage.
Bead-and-wire arithmetic tool
- slide ruleMechanical logarithmic calculator
- adding machineMechanical arithmetic device
- CasioJapanese electronics manufacturer
- Texas InstrumentsElectronics and semiconductor company
Hewlett-Packard · keypad · display · LCD · buttons · solar-powered · battery-operated · TI-84
Mathematics of basic operations
- algebraMath using symbols
- trigonometryTriangle angle mathematics
- calculusMathematical analysis system
- equationsMathematical equality statements
fractions · decimals · percentages · exponents · logarithms · square roots · derivatives · integrals
Accessible via internet browser
- appMobile device software
- widgetUnspecified small device
- spreadsheetTabular data organizer
- smartphoneHandheld connected computer
embedded · browser · toolbar · unit converter
Compact computing circuit
- integrated circuitMiniaturized semiconductor electronics package
- LCD displayLiquid crystal visual output
- LEDSemiconductor that glows
- transistorSemiconductor signal switch
silicon chip · circuit board · semiconductor · firmware · solar cell · digital display · microchip · capacitor
Gradual debt reduction schedule
- compound interestReturns on reinvested earnings
- APRYearly borrowing cost
- monthly paymentRecurring scheduled remittance
- currency converterConverts between monetary systems
abacus
Bead-and-wire arithmetic tool
- slide ruleMechanical logarithmic calculator
- adding machineMechanical arithmetic device
- CasioJapanese electronics manufacturer
Texas Instruments · Hewlett-Packard · keypad · display · LCD · buttons · solar-powered · battery-operated · TI-84
arithmetic
Mathematics of basic operations
- algebraMath using symbols
- trigonometryTriangle angle mathematics
- calculusMathematical analysis system
equations · fractions · decimals · percentages · exponents · logarithms · square roots · derivatives · integrals · statistics
web-based
Accessible via internet browser
- appMobile device software
- widgetUnspecified small device
- spreadsheetTabular data organizer
smartphone · embedded · browser · toolbar · unit converter
microprocessor
Compact computing circuit
- integrated circuitMiniaturized semiconductor electronics package
- LCD displayLiquid crystal visual output
- LEDSemiconductor that glows
transistor · silicon chip · circuit board · semiconductor · firmware · solar cell · digital display · microchip · capacitor · printed circuit
amortization
Gradual debt reduction schedule
- compound interestReturns on reinvested earnings
- APRYearly borrowing cost
- monthly paymentRecurring scheduled remittance
- campus storestextbooks, used books, e-textbooks, course materials, school supplies
- accommodationsextra time, double time, time and a half, breaks, rest breaks
- Entrance Examsentrance exams, admission test, admission tests, SAT, ACT
- low-power devicesLEDs, watches, sensors, remote controls, remotes
- STEMscience, engineering, mathematics, math, technology
- technologyelectronics, computing, computer, internet, social media
calculatorsabacuses
Manual calculation devices
slide rules · mental arithmetic · pen and paper · tally sticks · analog computers
calculatorsmental math
Numerical computation done internally
intuition · estimation · guesswork · gut feeling · ballpark figures
calculatorshuman mind
Faculty of thought and awareness
brain · intuition · estimation · guesswork · mental faculties
- scientific calculatorAdvanced computation handheld
- pocket calculatorPortable electronic math tool
- graphing calculatorElectronic function plotter
- calculator watchWristband with digits and math
- calculator appSoftware for computation
- tip calculatorTool computing server gratuity