.Definition: Internet networking is the global system that connects computers, smartphones, servers, and other devices so they can exchange information.
.How it works:
.Packets: Data is broken into small units called packets. Each packet carries part of the message plus addressing information.
.Transmission: Packets travel through physical media (like fiber-optic cables, copper wires) or wireless signals (Wi-Fi, cellular networks).
.Routers & Switches: Special devices guide packets along the best path to their destination.
.Protocols: Rules such as TCP/IP ensure packets are sent, received, and reassembled correctly, even if they take different routes.
.Key Components:
.IP Address: A unique identifier for each device on the network.
.DNS (Domain Name System): Translates human-friendly names (like google.com) into IP addresses.
.Servers & Clients: Servers provide resources (websites, files), while clients (your computer/phone) request and use them.
.Why it matters:
Enables communication (email, messaging, video calls).
Provides access to information (websites, cloud storage).
Powers commerce, entertainment, and social interaction worldwide.
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