Text and Integers. The time the signal is high (tH) can vary anywhere from 1% of the period to 99% of the period. This form of signal is well suited to active components, because the 0 and 1 voltages can correspond to full-on and cut-off conditions, respectively, each of which causes very little dissipation. The signal is either present or it is not. Example of Digital Signals: Digital signal are commonly referred to as square waves or clock signals. The composite video coming out of an old RCA jack, for example, is a coded analog signal usually ranging between 0 and 1.073V. Their minimum value must be 0 volts, and their maximum value must be 5 volts. Tiny changes in the signal have a huge effect on the color or location of the video. In some way, an electronics project mainly interacts by the real analog world whereas digital signals with computers, microprocessors, and logic units. The best example of an analog signal is a human voice, and the best example of a digital signal is the transmission of data in a computer. Example Analog Signals Video and audio transmissions are often transferred or recorded using analog signals. They can be periodic (repeating) or non-periodic. However, a good example of a digital signal is Morse Code. The signal is sent as a series of ‘on’ and ‘off’ pulses. Digital signals consist of rapid transitions between two voltage levels that are labeled 0 and 1. The best example of an analog and digital is electrons because it deals with analog as well as digital signals, input & outputs. Digital signals: Modern electronic products such as computers and mobile phones depend on digital signals.