Origin of oscilloscopefrom Classical Latin oscillare, to swing + -scope
Origin of oscilloscopeoscill(ation) -scope
oscilloscope - Computer Definition
A test instrument that is used to measure and analyze electronic signals (waves and pulses) displayed on its screen. The x-axis represents time, and the y-axis represents an instantaneous view of the voltage of the input signal. To allow viewing signals across a wide frequency range, the rate and speed at which the sweep of the x-axis occurs is configurable. The sensitivity of the inputs can also be configured to accept signals from microvolts peak-to-peak to many thousands of volts peak-to-peak. Both analog and digital oscilloscopes are available. In an analog scope, the x-axis is controlled by an internal time base, and the y-axis is directly controlled by the input signal. In a digital model, the input voltage is sampled at a preset frequency. The x-axis represents the samples along a timeline, and the y-axis shows the voltage levels of each sample. See spectrum analyzer.