Our networking category covers the infrastructure, protocols, and transmission media used to link devices across various distances. Learn about the methods of data communication, network design layouts, and the hardware and software standards that enable seamless information flow in a connected world.
Quick Answer: Telnet is an old remote access tool that uses port 23 and sends all data in plain text, so anyone on the network can read your password. SSH uses port 22 and encrypts everything. Use SSH-2 for all real work. Keep Telnet only for isolated labs or old devices. Telnet and SSH both … Read more
Every network sends data in one of two ways. It uses a cable, or it uses radio waves. This one choice decides how fast your internet speed, how safe your data stays, and how much freedom you get to move around. I have set up both types of networks in computer labs and at home. … Read more
Quick Answer: A public IP address is a unique, globally visible number that your ISP assigns to your router. It identifies your whole network on the internet. A private IP address is a local number that your router assigns to each device, like a phone or laptop, inside your home or office network. NAT (Network … Read more
TL;DR (Quick Summary): The OSI (Open Systems Interconnection) model is a 7-layer framework created by ISO in 1984 to explain how data travels between devices over a network. Moving from bottom to top, the 7 layers are Layer 1: Physical (cables and raw bits), Layer 2: Data Link (MAC addresses and frames), Layer 3: Network … Read more
A computer network needs hardware to work. Without hardware, no data can move from one device to another. Think of it like a road system. Cables and wireless signals are the roads. Networking devices are the traffic signals, junctions, and toll gates that control how data moves. Every network, big or small, uses the same … Read more
The Internet is a massive global network that connects billions of computers and devices to each other so they can communicate and exchange data. In 2026, the internet is not just a tool for entertainment. It is the infrastructure for education, employment, healthcare, commerce, and civic life. According to the ITU’s Facts and Figures 2025, … Read more
MAN networks offer impressive benefits like fast data transfer and centralized management, yet they demand substantial investment and technical expertise. Understanding both sides of this networking solution helps students and professionals make informed technology decisions. Advantages of MAN Network Metropolitan Area Networks offer numerous benefits that make them valuable for city-wide connectivity needs. Here are … Read more
Networking devices, such as gateways and switches help computers communicate. But they work differently. Many students confuse them. Today, we will learn the key differences between a Gateway and a Switch in simple terms. A Gateway connects different networks, like your home Wi-Fi to the internet. It translates data between different systems. A switch connects devices in the same network, like computers in … Read more
In computer networks, a gateway is a networking device that connects two different networks. It acts like a bridge, allowing data to flow between systems that use different communication rules. Imagine you speak English, and your friend speaks Spanish. To communicate, you need a translator. A gateway works like a translator for computer networks. Gateways … Read more
The main difference between edge and cloud computing is that edge computing processes data locally on devices or nearby servers. This makes it faster for real-time tasks like gaming or smart devices. On the other hand, Cloud computing relies on remote data centers over the internet, which is better for storage-heavy jobs like streaming or … Read more