Advanced triggering features . When troubleshooting with an oscilloscope, one of the most important scope features is triggering. Triggering circuits tell the scope when to begin displaying a signal, and you want to be able to trigger on conditions that may be causing problems. This is especially important when troubleshooting digital circuits. Glitch triggering is an interesting example.
Glitches are short pulses that occur as a result of noise or timing problems in a logic circuit.
You can program a DSO to trigger on such short pulses, which can be either positive or negative. Since a DSO captures signals both before and after a trigger, you can see events that may have caused the glitch as well as what happened to a circuit after the glitch. Recording and archiving. To record a waveform with an older scope, you had to bolt a Polaroid camera to the scope screen and take a photograph of the waveform. You then pasted these photos into reports or engineering logbooks.