My grandfather was an engineer and manager at IBM in the era that the 1401 was built. He worked on the IBM 1620, and always framed them as kind of in competitio

My grandfather was an engineer and manager at IBM in the era that the 1401 was built. He worked on the IBM 1620, and always framed them as kind of in competition with each other. The 1401's internal codename was "SPACE", and the 1620's was "CADET" (apparently as a kind of matched pair?) It was definitely a treat to see it, with the personal connection I had. I'll be going back if I'm ever in Mountain View again.