There was always a fairly large community dedicated to HP calculators. It was the replacement to HP-28S, and was later upgraded to become HP-48GX. I also got the battery-operated infrared printer, HP82240A.įinally, in 1990, I bought my last HP calculator, the HP-48SX. I used it for a couple of years, and then switched to HP-28C and then (the next year) I upgraded to the HP-28S, with more memory. So I got the then brand new HP-15C, a scientific programmable calculator that still is one of the best calculators ever made. In 8th grade we were allowed to start using calculators in math. It was the non-programmable version of the HP-25, with red LED display and rechargable battery pack. He also got my family our first calculator, an HP-21. He connected it to a server back at HP and downloaded pictures to print on the plotter. Through him, I got to see some early computers, once he brought home a computer, a plotter and a very early aucoustic modem. For the first few months he lived with me and my family, until he was able to find an apartment. Back in 1974-75, my cousin moved from Blekinge in southern Sweden to Stockholm after getting a job at Hewlett-Packard. My personal history with HP goes back to my early childhood.
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