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Finite state machines have

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Finite state machines have

(a) Past memories also

(b) Only present and future memories

(c) Only future memories

(d) Only present memories

I have been asked this question during an interview for a job.

My enquiry is from Convolution Encoding and Decoding topic in division Channel Coding of Digital Communications

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Correct option is (a) Past memories also

Easy explanation: A convolution encoder belongs to a class of device called as finite state machines which are those machines that have a memory of past signals.

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