ELI5: Explain Like I'm 5

Computer network

A computer network is a group of computers connected to each other so that they can share information and resources. Each computer is like a person in the group and the computers are connected by things like wires and wireless signals. The computer network helps people send information from one computer to another so that everyone can access the same information. For example, if someone sends an email, the computer network would send the email from one computer to the people who need to see it.