A switch is an active network component connecting individual network segments. A switch contains a larger or smaller number of ports (up to a couple of hundreds) to which network devices or network parts connect. The term “switch” is used for different devices in the whole range of network technology.


A router is a networking device which — by the process called “routing” — resends datagrams towards their destination. Unlike a switch, a router connects two networks and transfers data in between. Routing takes place on the third (network) layer of the ISO/OSI seven-layer model.

Wireless Networks

Wireless network is that type of computer network within which individual network participants connect via wireless communication, most commonly thanks to electromagnetic waves. Nowadays, the most popular internet connection is via wireless WiFi network, which offers a wide range of advantages appreciated by those interested in fast, comfortable and cheap connection.