User:Mihir sarvaiya2006

	About internet:- 1)	Internet brings the outside word in your in your desktop, in your home and office. It is a global network made up of thousands of network that communicate with each other. 2)	Internet has been started as a US government in year 1969 called the ARPANET (Advance Research Project Agency Network). 3)	 After some time national science foundation has created the experienced network called NFS Net. 4)	A large world that collection of the network and computer system commuting according to the some protocol which is said internet. 5)	In the early 1990 commercial network with their own internet exchange allow to conduct the business on the internet. 6)	Internet offers a diverse range of the information and ideas converting almost every topic you can think of.

	Characteristics of the internet:- 1)	Complex network:- Millions of networks are connected with 140 millions of individual network. 2)	Decentralized system:- Network is confusing experience user. 3)	Dynamic:- Changing every minute of every day in the internet. 4)	File composed;- Number of the clients servers and the network that are using numbers of the files to communicate with each other file systems are used. 	Impact of Internet in various field:- 1)	The working place is becoming stressful for many people, with long hours. 2)	The internet of ours in alternative place working from home. 3)	It has caused a great a great revolution in the society, allowing people from all over the world to communicate their ideas & feelings. 4)	It has allowed minor groups much more power then they have in real life. 5)	Internet allows anyone who may not have carriage to out to others with these ideas. 6)	That’s means people who have a contain view can get support without being worried. 	Services available on the internal:- 1)	E-mail:- It is the most common service of the internet. E-mail is the method of sending messages, voice, videos and graphics over digital communication. It is the type of client server that provides store messages service between any two e-mail accounts.

2)	News group:- There are individual discussion group within use-net. It is a public messaging and bulletin board system. It compresses more then 34,000 individual forums and each one contain one topic.

3)	Chat:-

4)	Audio-video demand:-

	Internet has main four parts services, element of WEB, URL & IP:- •	A structure of the internet or network back born is made up a very high-speed communication link BRITISH TELECOM, AT&T or VSNL in India. •	And this connection to the back-born are made by ISP (Internal Service Provider).

	Element of the web:- 1)	Web browser:- Web browser is the software operation that can display text, images and multimedia documents found on the different web pages. 2)	Web pages:- It is a normal or simple pages for one particular web browser. 	The most commonly used web browsers are INTERNET EXPLORER and NETSCAP NEVAGATOR.

	Generally clients are running on the some special software that is called browser software. That allows to 1)	Locate to appropriate server 2)	Query the server for the information to be read

	Server run on the special software that is called web server software to allow 1)	Respond to the client request for information. 2)	Accepts the data from client.

	URL (Uniform Resources Locater):- URL is the unique address of the internet resources. It has four components 1)	Transfer Protocol 2)	Server Name 3)	Directory Name 4)	File name Eg.:- http//www.microsoft.com/html/Apl.html

	IP (Internet Protocol):- It is a method by which data is send from one PC to another. Each computer has at least one unique IP address if they are connected with the internet. 	Domain:- Domain is the one type of the place where the information is available. This is the physical domain on the internet. INTERNIC is the international body for the internet. It is the responsible for assigning & registering IP address of the particular organization. 	Physical domain can provide 1)	A get way to other computers to access the internet and/or 2)	Provide the information for internet clients and/or 3)	Provide a physical location on which server virtual domain can be hosted.

	Virtual domain are identified by a name (Eg. www.microsoft.com) just like a physical domain needs to have a unique IP address. So virtual domain name needs to be unique on the internet. 	Inter NIC root server contain different types of extinction to identify the service provided by domain. Domain name	Extender .edu	For education .gove	To provide information about the government of country. .mil	For military .org	For organization in the world .com	For commercial service

1)	it is not compulsory that to permute the address to each and every. 2)	When a client log-in it will ask for unique IP address. ISP server temporary assign and IP address to particular client. 3)	When a client logs on the BSNL server, server assign IP address from a block of IP address. 4)	Each time the some client logs onto the server, ISP provide the unique but different IP address to the computers. 5)	Due to the block of the IP address the maximum numbers of the computers are limited which are connected with the ISP server. 6)	Protocol is the set of the rules or standard design to enable computing to get connected with one another and can exchange information. Structure of the IP address:- 1)	IP address is separated by provide. 2)	It contains total 32 bit inside. 3)	Address are as four parts, 8 bits each separated by a period. 4)	Each field/parts can be a member of ranging from 0 to 255. 5)	Four fields are club together, 1)	network number, 2)	Host number, Depending on the type of the network. o	Internet protocols:- It is a responsible for twice network connectivity. o	TCP/IP:- (Transmission Control Protocol/Internet Protocol ) o	FTP:-(File Transfer Protocol) o	TELNET:-(Telecommunication Network Protocol) o	SMTP:- (Simple Mail Transfer Protocol) o	NNTP:- (Network News Transfer protocol)

	Internet protocol:- `	Protocols are used for network connectivity. •	It is a low level protocol that route a packet or data across the separate data across the separate data. •	TCP/IP:- TCP/IP is a protocol stack design to connect different network and assure that connections are made and maintain between the computers. •	It means the data from one network layer to another. •	It contains four layers APPLICATION TRANSPORT Internet Host-to-network 1)	Intent layer:- A)	To permit host to inject data into any network and have them travel independently, travel to the destination. B)	They may even arrive in a different order then they were sent, in which case I is the job of the internet layer to rearrange them. C)	It defines packet format and protocol. It is define to derive IP packets where they are suppose to go. TCP/IP:- TCP/IP is a protocol stack design to connect different network and ensure