TI-83

Texas Instruments calculator

The TI-83 is a graphing calculator made by Texas Instruments, introduced in 1996 and ubiquitous in American high school math classes.

Its chunky gray form factor and limited display became iconic—generations of students learned to graph parabolas, run programs, and play games on it during class.

I still have my TI-83 from high school.

education

graphing calculator

Electronic function plotter

math classAcademic period for calculations
algebraMath using symbols
precalculusMath preparation for derivatives

calculus · statistics · SAT · ACT · AP exam · homework · classroom · standardized test · curriculum · STEM

brand

Texas Instruments

Electronics and semiconductor company

TI-84Texas Instruments graphing calculator
TI-89Programmable graphing calculator
back-to-schoolReturning to classes

price · expensive · required · approved · educational technology · monopoly · competitor · Casio · HP · retail

hardware

LCD screen

Light-modulating pixel grid

keypadButton array for input
batteriesPortable energy storage units
AAATop credit rating

link cable · contrast · pixel · plastic case · serial port · RAM · archive · memory · processor · monochrome

programming

code

Symbolic communication system

programPlanned sequence of actions
variableProne to fluctuation
loopCurve closing on itself

syntax · algorithm · input · output · assembly · games · Snake · homebrew · hack · source code

graphing

plot

Storyline or land parcel

functionPurpose or duty
windowGlass-fitted wall opening
traceMinute remnant or pursue

zoom · table · intersection · slope · asymptote · coordinate · axis · domain · range · regression

TI-83

graphing calculator

Texas Instruments

LCD screen

code

plot

TI-83

Opposites

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