Que signifie le serveur en cours d'exécution sur un ordinateur

que signifie le serveur en cours d'exécution sur un ordinateur

A server is a computer or system that provides resources, data, services, or programs to other computers, known as clients, over a network.

In theory, whenever computers share resources with client machines they are considered servers. ...

This means that a device could be both a server and a client at the same time.