IP Addresses

Networking Basics for Developers and IT Professionals Networking is the backbone of modern software and IT. It connects apps to users, data to services, and devices to each other. For developers and IT professionals, a clear picture of networks helps you build reliable systems and fix issues faster. A simple mental model works well at first: devices talk over networks, addresses identify them, and routers move traffic between networks. A basic view centers on devices, addresses, and routes. Computers, servers, and phones join a local network (LAN) through switches. Routers move traffic between networks, such as from your LAN to the internet. Each device gets an IP address (IPv4 or IPv6); DNS translates names into addresses, and DHCP can assign addresses automatically. ...

Networking Basics That Power Today’s Connected World In our daily life, many devices talk to each other. Laptops, phones, smart TVs, and sensors all share data. Understanding the basics helps you build a reliable home network, fix problems faster, and stay secure online. OSI and how data moves Think of communication as a stack of steps. The OSI model helps you picture this flow with seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. In plain terms: ...