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What is signal processing? Signal processing deals with the analysis and operation of (a. mechanical signals b. electrical signals c. biological signals). These can be (a. resistive b. digital c. analog) which vary across a range of values or (a. analog b. digital c. resistive) with only two possible values.

Signal processing deals with the analysis and operation of a. mechanical signals b. electrical signals c. biological signals. These can be  b. digital c. analog which vary across a range of values or b. digital with only two possible values.

Explanation:

In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current or electromagnetic wave that carries information. A signal may also be defined as an observable change in a quality such as quantity...A signal can be audio, video, speech, image, sonar and radar-related Signal processing deals with the analysis and operation of mechanical signals, electrical signals and  biological signals. The value of the signal is an electric potential which is voltage is also a signal. The term analog signal usually refers to electrical signals. Analog signals may also be other mediums such as mechanical, pneumatic or hydraulic.An analog signal signifies a continuous signal that keeps changes with a time period. A digital signal signifies a discrete signal that carries binary data and has discrete values. Analog signals are continuous sine waves. Digital signal is square waves

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