Components of a network
Fondamental : Network devices
Nodes: A node is any device connected to a network capable of communication. It consists of :
Host (End-device): A special node directly used by users or applications to generate, send, or receive data.
Clients: Devices that request services (PCs[1], laptops, smartphones).
Servers: Devices that provide services and resources to clients.
Each host has a Network Interface Card (NIC)[2] to connect to the network.
Intermediary Network Devices: Devices that forward data between hosts and interconnect network
segments.
Router: Connects different networks.
Switch: Connects devices within the same network.
Hub: Basic device that broadcasts data to all connected devices.
Access Point: Provides wireless connectivity
Complément : Other Basic Components
Transmission Medium (Link):
Wired: Twisted-pair, coaxial, fiber-optic cables.
Wireless: Radio waves, microwave.
Network Protocol: A set of rules that defines how data is formatted, addressed, transmitted, and received.