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Hewlett-Packard HP 21 Woodstock PUMPKIN

The Hewlett-Packard HP 21 Woodstock PUMPKIN is a scientific calculator with 12 digits precision and algebraic logic. It has 25 functions, 30 keys and an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed NiCd battery pack.

Facts at a glance:

Type Scientific
Functions 25
Keys 30
Precision 12
Logic Algebraic
Display type LED
Display size
Length 129 mm
Width 67 mm
Thickness 29 mm
Weight 170 g
Power Source Sealed NiCd battery pack
Original price unknown
Est. current value unknown
Year introduced 1975
Year discontinued 1978

See other calculators manufactured by Hewlett-Packard.