This question is not really a problem i am having but a thought that want to get off my mind.
Usually on a reading on a oscilloscope especially on a square wave and sometime triangle waves, there are these spikes or ringing.
See sample images from google below
I too have sometimes observed this when i am using an oscilloscope but i pay it not mind. From what i read it would seem that this is sometimes caused by bad probing. It got me thinking is this a oscilloscope specific phenomenon? if its caused by probing that would mean that whats actually happening on those lines are very clean signal (maybe not as steep voltage change but there is no ringing)
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