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Hewlett-Packard HP 71B (TITAN)

Hewlett-Packard HP 71B
Image: Wikimedia CC BY-SA 3.0

The Hewlett-Packard HP 71B is a programmable calculator with 12 digits precision and formula input logic. It has 55 keys, and an LCD (liquid crystal) display. The power source is 4xAAA. Note: Can be programmed in Forth or assembly language. Optional HP-IL module and the magetic card reader.

Facts at a glance:

FeatureValue
TypeProgrammable
Keys55
Precision12
LogicFormula
Display typeLCD
PrinterHP-IL
Length190mm
Width97mm
Thickness25mm
Weight340g
Power Source4xAAA
Year introduced1984
Year discontinued1988

Replacements:

If you have a Hewlett-Packard HP 71B that is no longer working, you can first try replacing the 4xAAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Hewlett-Packard