Computer Networking
What is Computer Networking?
Computer networking is the process of linking computer devices together so they can share data and resources. Early computer networks used a variety of protocols, such as Ethernet, to connect devices. Today, most computer networks use the TCP/IP protocol. TCP/IP stands for Transmission Control Protocol/Internet Protocol.
TCP/IP is a set of rules that govern how data is transmitted over a network. TCP is responsible for ensuring that data is delivered error-free, while IP is responsible for routing data packets to their destination.
Computer networks can be categorized into different types, based on their scope or scale. Local area networks (LANs) connect devices in a single location, such as a home or office. Wide area networks (WANs) connect devices across larger distances, such as across cities or states. Metropolitan area networks (MANs) are a type of WAN that is designed to connect devices in a specific region, such as a city.
The Internet is the largest computer network in the world. It is a global network of interconnected computer networks. Every device connected to the Internet is assigned a unique IP address.
Computer Networking Resources
CS402: Computer Communications and Networks
The rest of the course implements a top-down approach to teach you the details about each layer and the relevant protocols used in computer networks. Beginning in Unit 3, you will explore the concept of application layer protocols, which include the...
Prepare for the CompTIA Network+ (N10-006) Exam
The CompTIA Network+ certification measures a network administrator's basic understanding and familarity of networking components and concepts. This Learning Path covers the the topics and skills you need to become a CompTIA certified Network+...
Networks Illustrated: Principles without Calculus
What makes WiFi faster at home than at a coffee shop? How does Google order its search results from the trillions of webpages on the Internet? Why does Verizon charge $15 for every GB of data we use? Is it really true that we are connected in six soc...
Become a Network Administrator
Network administrators play a vital role in managing and maintaining an organization's computer network. Begin your career in information technology (IT) as a network administrator, and learn the essential skills you'll need to organize,...
Cisco IP Routing – 300-101
If you’re a network engineer with three to five years of experience in the field, then this CCNP...