How old is the segmented digit display?

[Jeff_Birt]

(12-07-2023 11:17 PM)Peter Klein Wrote:  The history of calculator displays is a classic case of compromises between what needs to be displayed, current technology, cost, readability, and how much the intended audience will accept the compromises. If you have a WP-34s, type h X.FCN, scroll to WHO and XEQ it. You will see a wonderful example of exactly such a compromise, as the names display both in dot matrix and then 7-segments.

I like to tell students that engineering is the art of compromise. You do the best you can to meet requirements given the relationship between time, cost and quality.