Internet

What is Internet ?

 A global collection of network
 The Internet is a network of networks, linking computers to computers sharing the TCP/IP protocols.

A Hierarchy of Networks

 From a single computer to LAN
 From LAN to ISP
 ISP to WWW

Malaysian ISP’s and type of services they provide

Internet Access

Via

 dial-up,

 landline (over coaxial cable, fiber optic or copper wires),

 T- lines,

 WiFi / WiMAX

 satellite

 GPRS, EDGE. ….

 cell phones

 3G…..

Internet Infrastructure

Internet protocol

 Every machine on the Internet has a unique identifying number, called an IP Address.

 The IP stands for Internet Protocol, which is the language that computers use to communicate over the Internet.

 A protocol is the pre-defined way that someone who wants to use a service talks with that service. The "someone" could be a person, but more often it is a computer program like a Web browser., etc

 An Internet Protocol address (IP address) is a numerical label that is assigned to devices participating in a computer network that uses the Internet Protocol for communication between its nodes

 An IP address serves two principal functions: host or network interface identification and location addressing.

A typical IP address looks like this:

 216.27.61.137

TCP/IP
Transmission Control Protocol/Internet Protocol, the suite of communications protocols used to connect
hosts on the Internet. TCP/IP uses several protocols, the two main ones being TCP and IP. TCP/IP is used by the Internet, as the de factor standard for transmitting data over networks.

(Internet) Applications

 World Wide Web's Hypertext Transfer Protocol
(HTTP)
 Simple Mail Transfer Protocol (SMTP)
 File Transfer Protocol (FTP)
 Telnet (Telnet) which lets you logon to remote
computers
 Simple Network Management Protocol (SNMP)
 VoIP
 IPTV
 …….

Internet Terms

 Domain Name System (DNS)
The Internet naming scheme which consists of a hierarchical sequence of names, from the most
specific to the most general (left to right), separated bydots :

example http://elearning.utm.my/

 IP (Internet protocol)
The Internet standard protocol that provides a common layer over dissimilar networks, used to move
packets among host computers and through gateways if necessary.

 IP Address
The numeric address of a computer connected to theInternet; also called Internet address.

exampel: 66.249.66.215 = 

# footnote : lets watch to HISTORY OF THE INTERNET..

Sejarah Internet

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