TI-57
TI-57 is a model of programmable Calculatrice of Texas Instruments left in 1977.
It has a capacity of 50 pas de programs (Octet S) and 8 memories. It has all the basic functions of a computer namely: tests, conditional connections, subroutines.
This computer had the rare characteristic to be refillable. Indeed, it did not function with disposable piles, but was equipped with a refillable battery and was delivered with a small charger.
The other models of programmable computers of Texas Instruments were then TI-58 and TI-59.
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