Wang 720B Electronic Calculator

Serial Number 875092

The Wang 700 series programmable calculator, announced in December of 1968, was designed to compete with the HP 9100 calculators that was killing the Wang 300 series calculator sales. The 700 series calculators leveraged work that Wang had done to make a computer to compete with the IBM 360. It is microcoded, like the HP 9100, to maximize the performance and flexibility of the calculator.

The 720 was introduced about 1970. Our 720B has 2k x 8 core memory, twice the amount in the original 700, and sold for $6,800. The 700 calculators are microprogrammed with a 2k x 43 ROP memory. The 720B includes additional microcode to support an IBM Selectric typewriter as a printer or plotter.