Channel: HACKADAY

Category: Science & Technology

Description: Fifty years ago, in the era before even microcomputers,Hewlett-Packard introduced the first handheld scientific calculator, the HP-35. It was a tremendous feat of electrical engineering, and a revolutionary product. In this mind-expanding talk, Rob Weinstein walks us through his digging into the original patent, reverse engineering the device down to the transistor level, and building his own homage inside an FPGA. Wow! Read more on Hackaday: hackaday.com/2022/04/07/remoticon-2021-rob-weinstein-builds-an-hp-35-from-the-patent-up