Hewlett Packard Electronic Calculators (1972-Present)

Hewlett Packard 45 (HP-45)

The Hewlett Packard 45, also known as the HP 45, was the second scientific calculator released by HP. It was released in 1973 and was the first calculator to feature a "shift" key. It had a price of $395 upon release, and had the code name "Wizard" which was the first known use of a code name for a calculator. There was also an Easter Egg hidden in the calculator that enabled a not-so-accurate stopwatch mode. The calculator was discontinued in 1976.

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