Quiz: Remember the definition of mal de mer?
A signal in which the original information is converted into a string of bits before being transmitted. A radio signal, for example, will be either on or off. Digital signals can be sent for long distances and suffer less interference than analog signals.
Note: The communications industry worldwide is in the midst of a switch to digital signals.
Note: Sound storage in a compact disk is in digital form.
Note: Sound and video can also be streamed via computer.