Understanding and Function Modem

Modem stands for Modulator and Demodulator. The function of the modulator is to process the data on the information signal to the carrier signal so that later can be sent to the user through certain media, this process is called modulation process. In this process where later data from the computer in the form of digital signals will be converted into analog signals. While the function of the demodulator is a process to get back the data sent by the sender. In this process later data will be separated from high frequencies and data in the form of analog signals will be converted into digital signals to be read later by the computer. The function of the modem itself is to make two-way communication that converts digital signals into analog signals or vice versa to transmit data or messages to the destination address. Can also be interpreted as an intermediary to connect between our computers to the Internet network.

There are so many different types of modems at the moment. For these types of modems can be differentiated based on the network and installation. Based on the installation, the modem can be divided into internal modem and external modem. While based on its network, modem can be divided into modem with cable media and modem with media without cable. Here's a brief explanation:

  • Internal Modem is a card that is installed on a slot that is on the motherboard. The advantage of using this type of modem is how to install the easier and also the price is relatively cheaper.
  • External modem is a modem installed outside the computer that can be plugged in the USB slot.
  • Modem with cable media is a modem that uses cable as a mediator media, for example telephone network and cable TV.
  • Wireless modem is a modem that uses wireless media for intermediaries, such as CDMA modems, GSM modems and more.

Hopefully useful ya friends. That is all and thank you.


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