Ethernet is an old networking technology that has been around for about 30 years. It’s based on the CSMA/CD protocol, which stands for Carrier Sense Multiple Access with Collision Detection. That means it uses a method of sharing bandwidth where the network cards on each computer take turns transmitting data packets. The other type of protocol is CSMA/CA, which stands for Carrier Sense Multiple Access with Collision Avoidance. WiFi networks are based on this protocol and they use a different method of sharing bandwidth which avoids collisions by using an algorithm that allows computers to transmit data packets at the same time, without any interruptions.