On Thu, 1 Apr 2021 20:14:02 -0600, lowbrowwoman, the endlessly driveling,
troll-feeding, senile idiot, blabbered again:


20 years ago or so Radio Shack had an o-scope probe to use with a
computer. The frequency range was limited by the processing power of the
day but it was handy for some things.

Yes, 20 years ago they had one! VBG