Oscilloscopes are a device that measures voltage and shows a graph of the result in real time. There are a variety of applications that this device is used for, including: data storage, Ethernet, fibre, Bluetooth, circuits, power conversion devices just to name a few.

There are an array of oscilloscopes, some of which are: analogue oscilloscopes, digital oscilloscopes, mixed signal oscilloscopes and mixed domain oscilloscopes.

Analogue oscilloscopes feature a cathode ray tube (CRT) on which a focused electron beam is passed over. The device will also feature a phosphor-based display for a brighter trace when producing results.

Digital oscilloscopes use a convertor to convert information from analogue to digital to display data on a screen. A digital signal which reconstructs the waveform is produced. The digital signal is made up of binary numbers for the computer to convert to an image on the screen in real time.

Mixed signal oscilloscopes (MSO) record both digital and analogue data, then compare the signals and produce the outputs on the digital screen. Both analogue and digital input channels are provided with MSOs with appropriate hardware to accommodate this.

Mixed domain oscilloscopes (MDO) record mixed signals in both analogue and digital formats. MDOs also have built-in spectrum analysers for measuring radio frequencies in the frequency domain.

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