[December_Stars]

There's a few but those are quite prominent. Most notably I remember when I took Physics 1 we used some very specific software which name I do not remember but it was proprietary and only on Windows. Other than that almost every class can be done entirely with free software, at least in HS.

[gr2zr4]

> very specific software which name I do not remember but it was proprietary and only on Windows

Because it was the only available software for that specific course or because your teacher told you "this is the software, period"?

[December_Stars]

Pretty sure this was the only available software, iirc it was some Vernier related thing.

[Avamander]

Yeah, buying hardware that has vendor-locks will lock you into that vendor's software.