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31 March, 12:58

A digital signal differs from an analog signal because it

a. consists of a current that changes smoothly.

b. consists of a current that changes in pulses.

c. carries information.

d. is used in electronic devices.

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  1. 31 March, 13:15
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    B!

    However a bunch of digital signals are used to carry information, most systems don't use analog information signals. Both are used in electronic devices.

    Digital is binary, 1 or 0.

    analog looks like a cosine graph
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