Radio Shack TRS-80 Model 100

I learned to code on a TRS-80 Model 100, in BASIC, when I was 7 years old or so. Nothing Unix-like about it, but as an introduction to programming concepts I got a lot of mileage out of it. The upside is, there are no distractions, and it basically doesn't do anything except let you write text or short BASIC programs. It's essentially a big keyboard with a little chunky LCD display and it runs a long time on AA batteries. I dragged it everywhere with me as a kid, along with the BASIC manual, trying to figure out how to get it to do things. The portability was a big plus, cause I could just keep experimenting whenever I had ideas.

> There's something very human and intimate in the usage of it, despite modern clamshells obviously having better viewing angles and giving you a better posture. They feel very natural and intuitive, in the same way a pen and paper does. There's also something more social about it, if you're using it to take notes while around other people. A screen pointed towards you is a private space; a screen visible to the room is more public (and less prone to distraction as a result because it's obvious to those around you if you're fooling around). I use a TRS-80 Model 100 as a notetaking device for that reason. (Well, also because it's nearly incapable of doing anything that could distract me on the go!)

It has me wishing the TRS-80 Model 100/Dynabook form factor had caught on more. Honestly, yes, I can understand this. A laptop screen pointed towards you feels like a private space, since other people can't easily see it. And indeed, I've definitely gotten work done in meetings for this reason. A device with a screen easily visible to everyone at the table I don't think would have this temptation. I sometimes use a Model 100 when I need to take notes without distractions, actually.

BASIC? GOSUB was so much worse than GOTO in that it had a stack for the current line but no stack for variables so you could not write recursive functions. I think Fibonacci as a recursive function is malpractice but boy was it a hassle to write Quicksort in BASIC although I had no trouble coding up an FFT (1950s FORTRAN style) from first principles in BASIC on TRS-80 Model 100 on a bus ride across Vermont. Funny though I did come to a conclusion that for the Arduino programs I wrote I didn’t need a stack at all.