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Vicente AyalaPython Development Techdegree Student 956 Points
Is it digital data to electrical signal or digital data to digital data?
At 1:03 Joy states modems turn digital data from your computer to digital data to be transmited over cable but the video slide states modems translate digital data from your computer into electrical signals to be transmitted over cable or telephone wire Which is correct?
Steven Parker228,978 Points
She actually says, "digital signals to be transmitted over cable...".
Both the terms "electrical signals" and "digital signals" describe the same thing in this particular example, though I would say "electrical signals" might be more technically accurate.
All digital data/signals is electrical aside from the physical medium that binds them(Motherboards, CPUs, SSDs, etc). Every term used to describe the process will ultimately be an electrical signal.