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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 Jahr – 31 Dez 2000 Jahr)
Zugefügt zum Band der Zeit:
4 Okt 2017
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Calculator history
Datum:
1 Jan 1980 Jahr
31 Dez 2000 Jahr
~ 21 years