External Modem

External Modem

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An external modem is a type of modem that is separate from the computer and connects to it, typically via a serial or USB port. Modems (a portmanteau of “modulator-demodulator”) are devices or programs that enable a computer to transmit data over telephone lines or other high-speed lines.

Here are some characteristics of external modems:

  1. Physical Separation: Unlike internal modems that are installed inside the computer, external modems are separate devices that connect to a port on the outside of the computer.
  2. Indicator Lights: External modems usually have a series of indicator lights that can provide useful diagnostic information, such as whether the modem is connected to the network, transmitting or receiving data, etc.
  3. Ease of Installation: External modems are generally easier to install and troubleshoot than internal modems because they don’t require you to open the computer case and deal with the computer’s internal components.
  4. Portability: External modems can be moved easily between different computers. This can be useful in situations where you want to share a single modem between multiple computers (though not simultaneously).

External modems were more common in the era of dial-up internet, but most high-speed internet connections today (like DSL or Cable) use modems that are external devices. In some cases, the modem functionality may be integrated with other functions, like routing, wireless networking, or VoIP, into a single device, sometimes called a residential gateway or broadband gateway.

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