Hewlett-Packard HP 33E (Spice/Spike SAGE)

Hewlett-Packard HP 33E
Image: Joe Haupt, CC BY-SA 2.0
The Hewlett-Packard HP 33E is a programmable calculator with 10 digits precision and algebraic logic. It has 78 functions, 30 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 2xAA.

Facts at a glance:

Feature Value
Type: Programmable
Functions: 78
Keys: 30
Precision: 10
Logic: Algebraic
Display type: LED
Length: 130mm
Width: 70mm
Thickness: 30mm
Weight: 210g
Power Source: 2xAA
Year introduced: 1978
YearDiscontinued: 1981

See other calculators by Hewlett-Packard