The Internet network consists of a set of equipment connected to each other to exchange information with common rules (protocols).
The equipment requests and receives information that it translates into a succession of bits (1 and 0) transmitted through wireless or wireless means of communication.
The transmitter cuts the information into limited-sized packages, for which it specifies its address and that of the recipient, respecting the IP protocol.
A recipient's address can be found from their name by querying a DNS server.
Reliability is ensured by the TCP protocol. In the event of an error or loss, the receiver requests a replay of the information. On the contrary, the UDP protocol favours the speed of trade and does not provide this mechanism.