My first computer, or what I remember as such, is older than me. Passed down by my father, it was made by CASIO in Japan in 1983, the year System V launched.
200 × 88 × 23 mm, 4 KB of RAM, 4 lines of 20 characters or 32 lines of 160 pixels, with optional printers, tape, and RAM expansions I never saw.
Mine still works great today. And by great, I mean that plotting sin(x) and cos(x) across the screen in BASIC, highlights of my childhood, still takes mere minutes to complete.
Overview
10 PRINT
Booklet (in French)
