APF MARK 56

The APF MARK 56 is a scientific calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is Sealed battery pack.

Facts at a glance:

Feature Value
Type: Scientific
Logic: Algebraic
Display type: LED
Length: 152mm
Width: 76mm
Power Source: Sealed battery pack
Year introduced: 1977

See other calculators by APF