Boots 424

The Boots 424 is a scientific calculator with 8 digits precision and algebraic logic. It has 30 functions, 35 keys, and a VFD (vacuum fluorescent) display. The power source is 2xAA. Note: Casio fx-21

Facts at a glance:

Feature Value
Type: Scientific
Functions: 30
Keys: 35
Precision: 8
Logic: Algebraic
Display type: VFD
Length: 145mm
Width: 84mm
Thickness: 25mm
Power Source: 2xAA
Year introduced: 1977
YearDiscontinued: 1977

See other calculators by Boots