Early handheld electronic calculators could be ordered from manufacturers or dealers. They also sold as relatively expensive goods in department stores. In the course of the 1970s, better chips made ...

Called Electronic Calculator XS, the product is solar-powered and joins the existing S and M calculators in the plusminuszero range. See also: ZFW watch by plusminuszero, launched in Milan too.

Educational electronic games in the form of handheld electronic calculators, designed for home use, soon followed. For example, the Novus (also National Semiconductor) Quiz Kid, was designed and ...