HP-45

The HP-45 was the second scientific calculator introduced by Hewlett-Packard, adding to the features of the HP-35. Especially noteworthy was its pioneering addition of a shift key that gave the other keys alternate functions.

The calculator was code-named Wizard [ [http://www.xnumber.com/xnumber/WMJ_hp45.htm HP CALCULATOR HISTORY - THE HP-45 ] ] , which is the first known use of a code name for a calculator. It also contained an Easter egg that allowed users to access a not-especially accurate stopwatch mode.

References

External links

# http://www.hpmuseum.org/hp45.htm
# http://www.digibarn.com/collections/calculators/hp45/index.html
# http://www.xnumber.com/xnumber/WMJ_hp45.htm