Hewlett-Packard HP 22S (Pioneer PLATO)

Hewlett-Packard HP 22S
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The Hewlett-Packard HP 22S is a scientific calculator with 12 digits precision and formula input logic. It has 200 functions, 37 keys, and an LCD (liquid crystal) display. The power source is 3x1.5V cell. Note: 15 preprogrammed formulas.

Facts at a glance:

Feature Value
Type: Scientific
Functions: 200
Keys: 37
Precision: 12
Logic: Formula
Display type: LCD
Length: 148mm
Width: 80mm
Thickness: 15mm
Weight: 120g
Power Source: 3x1.5V cell
Year introduced: 1988
YearDiscontinued: 1990

See other calculators by Hewlett-Packard