Collection details > Specific collections
Texas-Instruments is a brand that made many different calculators, and was, in a way, a pioneer in this field. They are credited for the first silicon transistors, the first integrated circuit, and also the first hand help calculator in 1967.
I don't want to relist all the models in this brand, as some other Web Sites are dedicated to this, but I wanted to make a collection of a specific series, the EXACTRA models.