Probably one of the first thing I owned with some type of processor in it. The Commodore US*8. I read here – “It utilizes a single Texas Instruments chip, the TMS0103NC, which is one of TI’s first-generation of single-chip calculator IC’s, for its calculating brains”. The article also states “was likely manufactured in the early part of 1973”. So it even predated my Magnavox Odyssey 300 (1976), Sears Video Arcade (1977, not a clone but an actual Atari 2600 under the covers) and TRS-80 Model 1 Level II (1978). I still have everything except this calculator. I remember throwing it away because some spongy black material under the keys started disintegrating (probably not a good reason). Probably cost ~$100.
