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A storage device has a capacity of 1 gigabyte is used to store a digital representation...

A storage device has a capacity of 1 gigabyte is used to store a digital representation of an information source using PCM representation. Determine the maximum recording duration for each of the following sources:
a) A 4 kHz audio source, with 8 bits/sample.
b) A 5 MHz video signal, with 12 bits/sample.

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