What is switch?

What is switch? Because we are discussing computer networks, naturally, the first and simplest answers to that question are:

• Switch is a hardware
• Switch is a network device

The next question in this line of discussion is: What is switch's function? To which we answer:

• Switch connects devices on a computer network

Finally, how does switch work? Here is the answer:

• Switch uses a packet-switching method to receive, process, and forward data to a destination device

Switch essentials

A switch is a Layer 2 network device, connecting your computer, other computers, and network peripheral devices on your LAN, whether at home or at work. Switch is used to extend networks, too. It contains two or more physical...