Casio 161K Desktop Calculator
Image Courtesy Serge Devidts, Calcuseum
Sixteen-digit capacity version of the
Casio 121K calculator,
introduced in late 1970. Four function, AC-Powered desktop electronic
calculator with Nixie tube display. Fixed decimal at 0 through 6
digits behind the decimal point. Constant on multiply and divide.
Accumulating total register that sums results of multiplication
and division. Uses early Fairchild 4-chip LSI calculator chipset.