ELI5: Explain Like I'm 5

telecom

Telecom is short for telecommunications, which is like talking to each other and sending messages over long distances. We use telecom to stay in touch with people who live far away. Telecom helps us do this by sending messages back and forth over wires and between mobile phones, computers, and TVs. The wires carry signals (a kind of energy) that allow us to communicate with each other. Telecom companies provide us with things like phones and internet service so that we can stay connected with our friends and family.