External Modem
An external modem is quiet similar to the internal modem in that it also allows access to the Internet. The external modem is an external part of the computer. It can be used when a computer is unable to fit an internal modem inside of it. The modem typically connects to the computer via a serial or USB cable, and it also needs an external power supply to operate.
Features of External Modem
- External modem does not need computers power supply hence they allow system to work fast.
- It is portable and lightweight because it is located outside of the computer.
- They are more expensive than internal modems due to their increased capabilities and independence from computer.
- External modems are more prone to theft and physical damage.
- It works with all sorts of computers, therefore even if a machine does not support internal modems, we may connect external modems.
Examples of External Modem
- USB Modems: USB modems are used to plug into a computer or router via a USB port.
- Ethernet Modems: Ethernet modems are used to communicate with a computer or router over an Ethernet connection.
Difference between Internal and External Modem
Modem stands for Modulator/Demodulator that modulates and demodulates electrical signals sent over telephone lines, coaxial cables, or other types of cables or we can say that they convert digital data from your computer into analog signals that can be transmitted over the cable, as well as modem translate incoming analog signals back into digital data that your computer can understand. In this article, we are going to discuss what is a modem and its types, and the differences between types of modems.