This is testing the limits of my rusty memory.

Yes. TRS stood for Tandy/Radio Shack (the companies merged). In that process we eventually lost access to a host of leather goods sold in Tandy stores.

They marketed their computer as "Radio Shack Color Computer," or "Rainbow Computer." Those of us in the baby computer fraternity referred to them TRS-80 (or Trash80) computers. Its CPU was a Motorola 6809 (a prototype for Motorola's later 68000 series of chips).

It was my first computer. Radio Shack Basic provided me an opportunity to learn something about programming.

Somewhere along the line I encountered the Mandelbrot Fractal, and related articles in Scientific American. Using that little computer coupled to a 5-inch floppy, I managed to create a program to render the Mandelbrot Fractal. The deeper one probed into the fractal, the longer it took to render an image; sometimes several weeks! The 6809 was not a fast chip.

One little known fact about the TRS80 was that it could run multiple windows. It was neat to switch between them to see what was happening, even if only inconsequential.

Many TRS80 users at the time regretted that the Color Computer was marketed solely as a game machine. We thought that if T/RS had promoted its technical capabilities, and kept developing the machine in that direction, they might have emerged as a name brand PC manufacturer.

I started writing code in the late 60's for the phone company. The code was all machine language, when BAL came along it was a jump forward as it had macros that you could use. The IBM1401 mainframe had a capacity of 8k, and the programs were carried in a long card shaped box that looked like a gun case. The program would read in in stages, perform a specific task to the whole universe of files then read in the next bit of the program to perform, rewind the magnetic tape and apply the next bit of logic. Has sure come a long way.