Networking Basics

Networking Basics - Key Concepts in Computer Networking


Begin your study of computer networking basics by exploring these key concepts and essential technologies.
 
 

 

What is (Computer) Networking?

Networking is the practice of linking computing devices together with hardware and software that supports data communications across these devices.


Networking Basics Quiz / Q&A

Answer this series of common questions about basic computer networking concepts to quickly expand your knowledge of the topic.


Visual Networking Basics

This guide presents the essential concepts of computer networks in a sequence of visual illustrations designed to teach networking basics by example.


Network File Sharing 101

Computer networks allow you to share files with friends, family, coworkers and customers. Learn about the different methods for file sharing including Windows, FTP, P2P and Web based.


Connecting Two Computers

The simplest kind of home network contains exactly two computers. You can use this kind of network to share files, a printer or another peripheral device, and even an Internet connection. To connect two computers for sharing network resources, consider these alternatives.


Introduction to Area Networks and Network Types

LAN and WAN are two common types of networks but many others exist.


Basic Network Topologies

One way to classify computer networks is by their topology. Common network topologies include the bus, star, and ring.


Free Computer Networking Books

Numerous published books are available for free download on the Internet. However, not very many quality, free titles are available on basic computer networking topics.


Network Routers

A router is a small hardware device that joins multiple networks together. These networks can include wired or wireless home networks, and the Internet.


What Is a Network Protocol?

Protocols serve as a language of communication among network devices. Network protocols like HTTP, TCP/IP, and SMTP provide a foundation that much of the Internet is built on. Find out more about these protocols and how they work.


What Is a Server?

In computer networking, a server is a computer designed to process requests and deliver data to other computers over a local network or the Internet. Common types of network servers include Web, proxy and FTP servers.


TCP/IP - Transmission Control Protocol / Internet Protocol

TCP/IP provides connection-oriented communication between network devices. TCP/IP is very commonly used both on the Internet and in home computer networks.


Firewalls

A network firewall guards a computer against unauthorized network access. Firewalls are one of the essential elements of a safe home or business network.


Networking Basics: Ethernet

Ethernet is a physical and data link layer technology for local area networks (LANs). Ethernet is reliable and inexpensive, the leading standard worldwide for building wired LANs.


Networking Basics: Switch

A network switch is a small hardware device that joins multiple computers together at a low-level network protocol layer. Switches differ in important ways from both routers and hubs.


Network Addresses

Network addresses give computers unique identities they can use to communicate with each other. Specifically, IP addresses and MAC addresses are used on most home and business networks.


Basic Computer Architecture

Understanding these concepts in computer architecture is essential to learning computer networking. Discover the fundamental elements of computer system and network architecture here.

"Computer Networking First-Step"

Many books exist dedicated to home networking, specific network technologies like wireless or TCP/IP, or various academic networking topics. This one covers the overall field of computer networking.