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Casio 001 Desktop Calculator
The Casio 001 is Casio's first attempt at a
desktop fully-electronic calculator, introduced in September of 1965.
Prior to the 001, Casio's calculators were based on relay technology, and while
their relay calculators offered sophisticated capabilities, it was clear that
pure electronics were the wave of the future. The Casio 001 offered
ten-digit capacity, with Nixie tube display, and a ten-key keyboard.
It was built with discrete transistor circuitry, with muliple plug-in
circuit boards. The knobs across the
front of the calculator could be set to provide a seven digit constant number
that could be recalled for repetitive use -- a primitive form of the constant
function provided in later calculators. This feature carried over from
Casio's earlier relay-based calculators. If you have one of these
machines, operational or not, please write to us via the "EMail" link at the
top of the page.