Question

define of:
internal modem
external modem ​

Answer 1

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internal modem:-

A modem that resides on an expansion board that plugs into a computer. In contrast, an external modem is a box that attaches to a computer's COM port via cables.

External Modem:-

An external modem is a network device that is in a self-contained enclosure external to a computer. This is in contrast to an internal modem that is contained on a printed circuit board with a computer.