TI-84: Monopoly math
Sep 20, 2026 · 1h 16m
Summary
This episode of Version History explores the history of graphing calculators, tracing their evolution from bulky 1960s prototypes to the dominant Texas Instruments models. The hosts discuss how TI established a near-monopoly by standardizing the interface and partnering with schools and the College Board, effectively locking out competitors like Casio and HP. The conversation also covers the cultural phenomenon of student hacking, including jailbreaking devices to play games like Drug Wars and Phoenix, and reflects on why the calculator remains a persistent, if stagnant, tool in modern educ…
Topics discussed
Introduction: The history of graphing calculators
High school memories and the Game Boy mod
Calculators as the precursor to PCs
The Caltech prototype and early handhelds
Canon and Sinclair: The race to market
TI's first calculator and market dominance
The debate over calculators in schools
The rise of graphing calculators and TI 85
Jailbreaking and early calculator programming
Drug Wars: The spreadsheet game phenomenon
The social divide of calculator upgrades
Sponsor break and return to the story
TI's strategy: Flash ROM and teacher training
Standardization and the monopoly on exams
Profit margins and the lack of innovation
The 'Math BlackBerry' and form factor debate
Smartphones vs. Calculators and modding culture
The new TI Evo calculator release
Reflections on friction and learning math
Sponsor break and peak calculator era
Was this peak calculator or peak TI?
Retroactive design changes and missed opportunities
The mystery of missing model numbers
Hardware quirks and the headphone jack
Hall of Fame criteria: Did it do something new?
Final verdict: Users vs. the product
Closing remarks and sign-off
End card sponsor
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