I.S 512TOPIC 2 : THE INTERNET AND THE WORLD WIDE WEB

History Of The Internet

• The Internet has its roots in a networking project started by the Pentagon’s Advanced Research Projects Agency (ARPA). Their goal was: • Allow scientists at different locations to share information and

collaborate on military and scientific projects • ARPNET became functional in September 1969

EXPLORING THE INTERNET

• The Internet can be defined as a collection of interconnected networks, all freely exchanging information. It is regarded as the world’s largest 46

• collection of networks which links together millions of businesses, government offices, educational institutions and individuals. The many networks that comprise the Internet, also called the Net

HOW THE INTERNET WORKS

Internet Addresses / how web pages work

•http://www.pctbc.co.za

protocol

Service Level

Domain Name Top level domain

WEB BROWSER SOFTWARE

• Web browser software is used to access and view Web pages. The more widely used web browsers are: • Microsoft Internet Explorer • Novell’s Netscape Navigato

SEARCH ENGINES

• Google• yahoo

INTERNET SERVICES

• E-mail • File Transfer Protocol (FTP) • Telnet • Chat Rooms • Video Conferencing • Social Networking