What is a Server?

• Server means “the computer that provides the service”.
• The server has a “file storage” role used for storage and sharing.
• Other roles that servers are expected to play include “information processing” and “content provision.

• A client is “a computer that receives services from a server”.
• The client’s basic role is to “use the service” provided by the server.
• In other words, servers and clients are in a “supply and demand” relationship.

What is a computer network?

• In most business networks today, computers, printers, telephones, cameras, lighting fixtures, servers, etc., switches are used to connect them. Switches act as controllers They enable network devices to communicate efficiently with each other.
• Routers connect several networks simultaneously. They also connect computers on the network, via internet connection. Routers save money because a single internet connection can be shared by all computers on the network.