Which type of signal is defined as a continuous signal that cannot be processed by a computer?

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A continuous signal that cannot be processed by a computer is defined as an analogue signal. Analogue signals, unlike digital signals, have a continuous range of values. This means they can represent a variety of data points, such as voltage levels or sound waves, in a smooth and fluid manner. Computers, however, primarily process digital signals, which consist of discrete values (0s and 1s). Therefore, while analogue signals can represent real-world phenomena like temperatures, sounds, and lengths, they cannot be directly processed by a computer's digital systems without first being converted into a digital format through a process known as analogue-to-digital conversion (ADC). This distinction highlights the fundamental differences in how various types of signals operate in the context of computer processing.