bioreconstruct on Twitter: "1982 Radio Shack ad. Before the IBM PC and the Apple Macintosh, TRS-80 was one of the biggest selling brands of small computers. Very appealing to hobbyists. https://t.co/Lh8n0DxQ81" /
Trash-80: What it meant and why it stuck - The Silicon Underground
Radio Shack EC-4000 Programmable Handheld Electronic Calculator | National Museum of American History
Radio Shack EC-240 Handheld Electronic Calculator | National Museum of American History