DIGITAL SYSTEMS

Digitalization has proved to be indispensible to the world. Digital camera, digital discs, digital computers—everything around the world has become digital. It is impossible to comprehend a world without digital devices. It is common to see teenagers and young children with hi-tech gadgets at their disposal.

Digital systems basically work by means of signals. Signals are of two types—analog and digital. Analog signals are those which can take a range of voltages. Values of analog signals are found to change with time. Physical quantities such as pressure, velocity, sound, current flow are examples of analog signals that are converted to digital signals by means of devices called transducers. Transducers are devices that convert ...

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