What is a switch?

To understand the basic network, you first need to answer the question: "What is a switch?"Most business networks today use switches to connect computers, printers and servers within a building or campus

A switch serves as a controller, allowing networked devices to talk to each other efficiently.

What is the difference between a switch and a router?

Keep in mind the following: switches create a network, whereas routers connect networks.
A router connects computers to the Internet, so users can share the connection.
 A router acts as a dispatcher, choosing the best path for information to travel, so that it is received quickly.A switch will be responsible for the communication between your devices on your private network.
The router will be responsible for managing the access of your devices to your internet.

Read More:   hub vs switch

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