Visual Index of Computer Networking Topics
See
the concepts of computer networking presented in a sequence of visual
illustrations designed to teach networking basics by example.
Networking Basics Q&A Quiz
The
quiz presents a series of questions and answers designed to expand your
knowledge of basic computer networking. Even if you get a question
wrong, or need to guess, the explanations provided with answer will
teach you what you need to know.
Network File Sharing 101
Common Misconceptions About Computer Networks
Certain
facts about networking tend to be misunderstood. This article describes
some of the most common misconceptions about computer networks.
How Big Is Your Network?
Do
you run a simple home network with just a few PCs, manage a business
network with thousands of clients, or operate a Wi-Fi hotspot? Here our
readers share descriptions of the size of their networks and what kinds
of devices they are made of.
Operating Systems and Computer Networks
Computers
use low-level software called an operating system to help people build
and run their own programs. Operating system software runs not just on
laptop computers but also on cell phones, network routers and other
gadgets. An O/S normally provides basic networking support for Ethernet,
Wi-Fi and sometimes Bluetooth and other wireless protocols.
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.
"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.
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