Internet & Web.

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Presentation transcript:

Internet & Web

What is Internet ? What is Web ? Definition

Internet

Internet Interconnected computer networks Used standard communication protocols (TCP/IP) Internet

Web

Network Four(4) layers:- Application (HTTP, FTP, Telnet, SMTP, DNS) Presentation Layer (JPEG, GIF, MPEG) Session (Apple Talk, WinSock) Transport (TCP, UDP) Network (IP, ARP, ICMP, IGMP) Data Link (Ethernet, ATM) Physical (Ethernet, Token Ring, Other Link) Network

Network Three(3) types of network: LAN (groups of computers share a common communication links) WAN (extends over a large geographical distance) MAN (interconects users with computer resources in geographical area, but smaller than WAN) Network

LAN

WAN

MAN

Web or WWW Worldwide collection of electronic documents Contains text, audio, etc Web or WWW

How to create web page HTML CSS Javascripts Web or WWW