What Is Difference Between CRO And Oscilloscope?

What Is Difference Between CRO And Oscilloscope? CRO DSO Simple Cathode Ray Oscilloscope does not have any memory. Digital Storage Oscilloscope has memory. Is DSO and Cro same? An oscilloscope, previously called an oscillograph, and informally known as a scope or o-scope, CRO (for cathode-ray oscilloscope), or DSO (for the more modern digital storage oscilloscope),