Keywords: Busicom.JPG On the left the NEC TK 80 kit based on Intel 8080 chip on the centre Busicom calculator motherboard based on Intel 4004 chip and on the right the Busicom calculator fully assembled in Ueno Tokyo Own 2007 Ruud Dingemans Computers in the National Museum of Nature and Science Tokyo Busicom 141-PF Intel 4004 |