Multiplexer(Multiplexing).In telecommunications and computer networks,multiplexing(also known as muxing) is a method by which multiple analog message signals or digital data streams are combined into one signal over a shared medium.
Depends, is the device serial or parallel?
serial device
Serial
Serial ports only allow one device to send and one device to receive at a time, where a parallel port can send and receive data at the same time.
No. VGA port is not either serial or parallel port. It is a different interface. If you need a serial output, you need a VGA to serial converter.
The best way is to attach a serial port using device to the serial port of your computer and use your preferred program to send data to the device
true.
Neither. A computer case is just a box to hold the parts of a computer. It provides no form of communication itself.
parallel
multiplexer can be used as parallel to serial converter.
Some key differences between a Serial and Parallel Adder are that a Serial Adder is slower, a Parallel adder is a combinational circuit and the time required for addition depends on the number of bits in a Serial, but not a Parallel. A Serial Adder is a sequential circuit while a Parallel is a combinational circuit.
A telegraph key.