>> I’ve even owned HP oscilloscopes...
I have one on my bench right now. A pre-Agilent mixed signal scope. Probably one of the last pieces of test equipment bearing the HP name.
HP spun off their test and measurement (and medical electronics) division as “Agilent” near the beginning of iCarly’s reign. According to Wikipedia, she didn’t originate the spinoff, but she did execute it.
I miss reverse Polish notation.