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Thursday, December 10, 2020

CONTINUITY: 1950s Teleregister Numerical Displays

In the 1950s big city stockbrokers' offices had large boards that showed near-real-time quotes of the most traded stocks. These boards had hundreds of these Teleregister electromechanical displays, which could be set by simple pulses of DC current and required no power unless they were changing. By 1964, these quote boards were installed in around 650 brokerage offices in the U.S. A few years later, they had all been replaced by quote machines.

Posted at December 10, 2020 19:36