What is Internet?

 Contents
• What is Internet
• Some key concepts
• Internet history, Internet Services
• World Wide Web, types of web sites
• Internet and Libraries
• Example applications at NCSI, IISc
• Internet Resources: Examples

What is Internet?
• Intranet: Use of TCP/IP to connect
computers on an organizational LAN
• Internet: Use of TCP/IP to interconnect
such networks
• TCP/IP is the basic Internet protocol
• Various application protocols operate over
TCP/IP
– SMTP (E-Mail), HTTP (Web), IRC (Chat), FTP
(File transfer), etc.