18 - Communication and Networking GapFill

There are many ways in which physical communication can occur between one device and another, and many ways in which such communication can be categorised.    UniversalSerialParallelSynchronous transmission entails a single channel, across which one bit can travel at any one time, whereas   serialsynchronousparalleluniversal transmission permits multiple bits to travel simultaneously, akin to there being multiple lanes on a single road.    AsynchronousSynchronousBusSerial transmission takes place alongside timing signals, to ensure that data is sent when expected, while   busserialasynchronoussynchronous transmission does not use such signals, relying instead upon   start and stopserialisationtimingsynchronisation bits.

Even the rate at which transmission takes place can be measured differently, with   bit speedbaud speedbaud ratebit rate measuring the data that's transmitted, and   baud speedbit ratebit speedbaud rate measuring the number of changes to a signal each second.