What is the difference between router and modem?

The terms modem and router are often mistakenly used as synonyms, even though they are quite similar in many respects and have few important differences for ordinary consumers. Nevertheless, there are significant differences between the two devices, but most of the time they need an explanation.

What's the difference between router and modem? An overview

Compared to a router, a modem works with digital data within an analog line. A router, on the other hand, works in network communication between multiple devices.

1. For example, a modem is used to receive and process analog signals such as communication networks, which can be both telephony and cable TV.
2. The modem generates suitable signals in the high-frequency range for this purpose, which in turn are fed into the line.
3. So, in summary, a modem is there to receive analog signals and convert them into digital signals.

This is what a router can do

1. A router permanently sends digital signals and thus ensures the communication of different devices in the network with each other.
2. A router analyzes data packets and forwards them to the appropriate destination addresses.
3. Router können untereinander kommunizieren und auch Endgeräte wie Smartphones und Laptops sein.
4. Datenpakete können ebenfalls von Routern blockiert werden und werden üblicherweise per LAN oder WLAN weitergeleitet.
5. Durch einen Router können Sie ein Netzwerk anlegen, das ein bestehendes digitales Internetsignal weitergibt.