THE INTERNET & WORLD WIDE WEB
WWW
(world wide web) an information system on the Internet that allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another
Commercial (TLD)
.com
Education (TLD)
.edu
Government (TLD)
.gov
Military (TLD)
.mil
Network (TLD)
.net
Organization (TLD)
.org
Examples of Web Browsers
1. Safari (Mac and Windows) 2. Firefox (Mac and Windows) 3. Chrome (Mac and Windows) 4. Internet Explorer (Windows only)
Web site
A collection of related web pages.
Firewall
A computer firewall limits the data that can pass through it and protects a networked server or client machine from damage by unauthorized users.
Client
A computer that communicates with a server. Clients request services or resources from a server.
Server
A dedicated computer that shares resources with other computers (clients) in a network.
Instant Messaging (IM)
A form of online communication in which users exchange messages in real-time, text-based communications.
IP address
A unique number that allows devices on the Internet to be located and to communicate with each other.
domain
An identification string that defines an Internet authority. Example: Google, Apple or Microsoft
DNS
Domain Name System. Converts a URL to a numeric IP address. Example: google.com ----> 74.125.22.113
Electronic mail. The most popular Internet Service
HTTPS
Hyper Text Transfer Protocol over Secure. It means all communications between your browser and the website are encrypted.
HTTP
Hyper Text Transfer Protocol. The foundation for data communication on the World Wide Web.
IP
Internet Protocol
ISP
Internet Service Provider Example: Comcast
LAN
Local Area Network - connects network devices over a relatively short distance
MAN
Metropolitan Area Network - a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city
P2P
Peer-to-Peer Allows client computers to share files.
Web Browser
Software used to access and view the WWW.
Internet
The largest network of computers in the world. Once referred to as the inter network.
Top-level domain or extension (TLD)
The most general part of a domain name in an Internet address. Also called an extension. ex: .com, .gov, .edu
Network
Two or more computers or devices that are connected and can share information and resources.
Hyperlink
Underlined or highlighted words or images that are clicked to access another web page.
URL
Uniform Resource Locater. A web address.
URL
Uniform Resource Locator. ( A web address)
WAN
Wide Area Network - a wide-ranged, geographically-dispersed collection of LANs
PAN
a computer network used for data transmission between devices such as computers, telephones, tablets, and personal digital assistants
Network
a group of computer systems and other computer hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users.
Anti-Piracy
designed to prevent the unauthorized use or reproduction of copyright material
Domain of http://www.google.com
Search Engine
is a program that searches for and identifies items in a database that correspond to keywords or characters specified by a user, used especially for finding particular sites on the World Wide Web
