Casio 152 Desktop Calculator
Photo courtesy of Mr. Takaharu Yoshida
Casio's first integrated-circuit based electronic calculator, introduced
in May of 1968. Utilized first-generation small and medium-scale
MOS integrated circuits manufactured by NEC.
15-digit, four-function, AC-powered desktop machine with two memory registers
and summation mode for each memory. Followed shortly by the
Casio 121 (12-Digit, 1 memory),
Casio 120 (12-Digit, no memory),
Casio 161 (16-Digit, 1 memory),
all introduced during 1968.