View Full Version : Early calculator

April 19th, 2009, 10:18 AM
Working in the early '70s I used a "calculator", which may have been an HP? It was a console type machine that was actually a limited microcomputer, but the term microcomputer hadn't been coined yet. Although digitally programmable, it could only be applied to certain tasks, and so was not fully general purpose. I used it to model theoretical microwave filter designs, but in my "spare time" I vaguely remember programming some crude guessing games like Guess my number, Nim and Mastermind on it. Of course, I wanted one of my own at home, but they were far too expensive. Reflecting back, I'm probably lucky to be alive today, because a few years later when PE displayed the Altair kit on their cover for $439, I'm quite sure my systolic blood pressure immediately doubled with excitement!