Did you mean: TI-59 / TO-58
TI-59 / TI-58
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The TI-59 is an early programmable calculator, that was manufactured by Texas Instruments from 1977. It is the successor to the TI SR-52, quadrupling the number of "program steps" of storage, and adding "ROM Program Modules". Just like the SR-52,... Wikipedia
Processor: TMC0501
Programming language(s): key stroke (Turing-complete)