Introduction to IP Address

  • The Internet is a net consisting of complex network of computers connected by high speed communication technologies.
  • The Internet has penetrated and benefited every field – be it education, sports, news, business, etc.
  • A web page can be designed using HTML.
  • The Internet has converted the world into a global village.
  • The Internet has led to faster globalisation. A web page is an electronic document that we can see on the Internet.
  • Web browser is software required to view web pages.
  • Mosaic was the first web browser.
  • www is stand for World Wide Web.
  • Electronic mail can be sent and received through any e-mail account.
  • Downloading is saving of files from the Internet to our computer.
  • Attachments are the extra files that we can send with our email.
  • E-commerce stands for electronic-commerce which means buying and selling over the Internet.
  • M-commerce is an emerging field which stands for mobile commerce.
  • Teleconferencing is having online conference with the facility of exchanging thoughts using an audio.
  • Videoconferencing means having online conference with the facility of seeing and listening to other participants.
  • Telecommunication is the use of electronic system to send and receive voice, data and video messages.
  • Broadly there are five components of communication system, namely information/ message, device, application, protocol and network.
  • Voice communication requires telephone instruments like telephone, mobile or VoIP phones for PSTN, wireless or data network.
  • Data communication allows transfer of information and remote management of devices.
  • Data communication is undertaken by directly connected computers, printers, etc. in a Local Area Network.
  • Long distance data communication is done through point to point connections using PSTN or wireless networks.
  • Broadcasting of audio and telecasting of video service such as radio and television is done through wireless links.
  • Ethernet is the most popular LAN technology for data communication which provides communication speed up to 10Gbps.
  • Internet Protocol (IP) connects the computer across similar or diverse networks.
  • In IP, data packets are transmitted in packets containing unique IP addresses for the source and the destination.
  • IP automatically routes the packet to its destination through any available path.
  • Convergence of technologies is required to meet the next generation unified applications where all the three forms of data are required to be transmitted simultaneously.
  • IP is internationally accepted protocol through which all different forms of data can be communicated.
  • The approach to convergence is to make all components of communication systems IP enabled.
  • While trying to achieve convergence, effort is on to use existing infrastructure with partial upgradation.
  • Broadband and IPTV are two next generation technologies which use PSTN to provide unified services for voice, data and video.
  • VoIP is a data communication technology which allows IP phones and computers to connect to telephones through PSTN and mobile networks.
  • Unified messaging system is provided by web service providers which can be used to access multiple services like e-mail, chat, call and entertainment from a single computer system with Internet connection.
  • Standardisation is very important for interoperability of various components in any system,
  • There are organisations which develop standards, rules and specification for a product that the manufacturers have to meet.

Programs

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