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/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
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1980s & 1990s - HP and TI, the leading calculator manufacturers, compete and 1-up each other constantly with new functions and abilities for their calculators. (1 jan 1980 ano – 31 dez 2000 ano)

Adicionado na linha do tempo:

Calculator history

ByCasey
4 out 2017
0
0
687

Data:

1 jan 1980 ano
31 dez 2000 ano
~ 21 years
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