Explain the purpose of an encoder and decoder in a communications system.

What will be an ideal response?


At the source of a communication, an encoder is responsible for converting the message into a form appropriate for transmission. At the destination, a decoder is responsible for converting the message
back into a form readable by the receiving device, such as a cell phone, personal digital assistant (PDA), or computer.

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To convert a millimeter dimension to inches, divide it by ____.

A. 23.4 B. 24.5 C. 25.4 D. 26.5

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An example of a warm season turfgrass is ryegrass

Indicate whether the statement is true or false

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Ohm’s law helps us to predict or confirm proper ____ operation.

a. circuit b. electronic c. mechanical d. current

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What percent of 80 is 40?

A. 30 B. 40 C. 50 D. 60

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