What Does Carrier Sense Multiple Access (CSMA) Mean?

Carrier Sense Multiple Access (CSMA) is a network protocol that listens to or senses network signals on the carrier/medium before transmitting any data. CSMA is implemented in Ethernet networks with more than one computer or network device attached to it. CSMA is part of the Media Access Control (MAC) protocol.

Techopedia Explains Carrier Sense Multiple Access (CSMA)