Provide an example of an analog signal, and explain how it works
What will be an ideal response?
The term analog refers to a measure, form, or expression that is continuous and has a range of magnitude between one value and another. Temperature, for example, is analog. If we have a finely calibrated Fahrenheit thermometer, we could measure a continuous range of temperatures from 98.000 to 98.999. In fact, humans live in an analog world. Things such as smell, sound, and touch, as we experience them, are all analog. When using analog transmission, the signal sent over the transmission medium will continuously vary from one state to another in a smooth, wavelike pattern. An analog wave is capable of having an infinite number of values as it travels along its path. Analog communications are used extensively. Phones (both landline and cellular), modems, fax machines, cable television, and many other devices and network services are based on analog communications. In analog communications, signals flow across a copper wire in the form of electromagnetic waves. Analog signals can also use fiber-optic or wireless (e.g., radio, microwave, infrared) transmission media.
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What will be an ideal response?
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