To my limited knowledge, there are two features of a DSO that are not available on an analog scope
I can think of a
lot more than two
Second, the Auto button which will analyze the signal and set the t/div and V/div automatically. Will it always be the exact setting you need? Probably not... But it will get the scope out of some squirrelly setup used previously and get a trace on the screen.
Some setups are so squirrelly you need to do a preset before you do an autoset
. One of the first things I learned as a field applications engineer was to start every demonstration by showing how the preset button works ….