Saturday, January 12, 2013

Hewlett-Packard 9100A

Hewlett-Packard 9100A


The Hewlett-Packard 9100A an early computer, first appearing in 1968. HP called it a desktop calculator because, as Bill Hewlett said, "If we had called it a computer, it would have been rejected by our customers' computer gurus because it didn't look like an IBM. We therefore decided to call it a calculator, and all such nonsense disappeared."

The 9100A was the first scientific calculator by the modern definition (i.e. trig, log/ln, and exponential functions), and was the beginning of Hewlett-Packard's long history of using reverse Polish notation entry on their calculators.

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