1974 "first handheld battery powered computer"

It’s a programmable calculator! Quite large, contains a stack of 5 printed circuit cards, no fewer than 7 custom chips, plus 3 ROM and 4 RAM chips. News item from 1974:

(Photo above from and more technical info at datamath.org.)

Teardown by Dave of EEVblog:

Lots of history and technical info at
The History of Compucorp By Rick Bensene

via hpmuseum forums