From 1976 is this attractive calculator with a very tasteful brown and orange colour scheme for the keys. The calculator was powered by a Rockwell A5901CA CPU. This gave the 24RD-II square root and percentage functions as well as the basic four arithmetric functions.
Whatever function you use, the numbers are shown on an eight and a half digit vacuum fluorescent display. The calculator supported negative numbers and has the extra half digit to display the sign if negative.
