A modem that resides outside the computer, and that attaches to the computer's serial port by cable.
A modem that resides in a self-contained box outside the computer system.
A modem that attaches to the computer externally, usually through a serial port, and has its own power supply. An external modem operates no differently than an internal modem, although it can be shut off without turning off the entire computer.
a hardware device, that is attached to the serial port of the computer using a serial port cable
a modem in a small desktop chassis that uses a cable to connect to a serial COM port or USB port on the back of your computer
a modem that is not built into your computer, but which you can plug into your computer and your phone line to access the Internet
a small box that connects to the PC through a serial I/O port
modem that is plugged into one of the serial ports on a computer. External modems often have lights on them showing current activity. Because they are external, they also have to have their own power source and power switch. Due to the case, power supply, and cable that an external modem requires, the price is usually more than an internal modem, though only by about $20. External modems do not have UART chips built into them.
A modem that is separate from the unit with which it operates.
n. A stand-alone modem that is connected via cable to a computer's serial port. See also internal modem.