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Created page with "== Introduction == An oscilloscope, often abbreviated to 'scope or O-scope, is a type of electronic test instrument that graphically displays varying signal voltages, usually as a calibrated two-dimensional plot of one or more signals as a function of time. The displayed waveform can be analyzed for properties such as amplitude, frequency, rise time, time interval, distortion, and others. == History == The oscilloscope, originally called an Oscillogra..."