Computer Networks And Internet Protocol Television Essay Example for Free

Computer Networks And net Protocol Television EssayThe climax of computer has transmuted the way the world hightail its. Distance factor is no immenseer a problem. The physical capacity appear a heroic place with things at far off places but the world in virtual form doesnt believe in distance. E genuinely(prenominal)thing tooshie be achieved within minutes if non seconds. The whole engine room behind this mega change is found on computer and is termed as Information Technology. This engineering has led to the creation of a cyber world or electroni send fory generated world with the help of computers connected to all(prenominal) early(a) by means of suitable wires. Now words same(p) cybercafe, cyber chat, cyberspace, cyber shopping, etc. fool started making rounds. mess can send electronic mails to far off places within seconds. Details and education be getting transferred within few seconds. People in Shanghai and New York are just seconds away. Transferri ng data in electronic form is real the fastest way to transfer things. Its not only the nub transfer that has been revolutionized but also the business world. There are virtual shopping malls with website offering you a range of produces ranging from computer peripherals to groceries.Companies are direct providing details of their product through their website and are accepting customers requests of information and straightaway even orders for products are being accepted. Everything is available. M one(a)y transfer can easily be through with(p) through wire transfer techniques. People do not wait. This world is not ruled by armed soldiers or any nuclear weapon. Its the information which rules. The physical world just has to pit on the outcome. Its role is just for receiving and sending.This high performing virtual world has do significant change in the capital punishment of the actual world (Tanenbaum, 2003). Things in real world are now easier to comprehend. Outsourcing ha s helped in accessing low cost labor in far off Asian nations like India and China. Multinational companies like Microsoft, IBM, GM. , GE etc. have offices in close to in each part of the world with performance of each of these units can be monitored from any of its offices. Their offices have been vaneed though LANs i. e. , Local electron orbit Network and WANs i.e. , coarse Area Network. They have virtually prove themselves available to their customers any time anywhere and just a click away (Tanenbaum, 2003). 2. Computer System Network of computers A computer system and net of computers are actually two different but interrelated things. A computer system is just a normal computer including peripherals and software necessary for the functioning of the device (Webopedia). But if we talk of Computer Network, it can be defined in a very simple way as a meshing of computers (Princeton).But giving full importance to all factors getting into act when we talk about network, the interpretation which actually hires complete sense is none other than the two or more(prenominal) computers connected together to share hardware, software and data and has been implemented according to some topology (Tanenbaum, 2003). The network can have all peripherals located within an office or building. This arrangement is often termed as Local Area Network or LAN (Tech, 2006). If the same is achieved in a wide area i. e., computers connected to the network are located at places as diverse as countries in different continents, we can call the same as Wide Area Network or WAN (Cisco, 2006). Calling all computers and other intelligent parts of it as nodes, the term network topology can be defined as patterns of links connecting a pair of nodes of a network. 3. Internet Protocol IPTV Technology related television operate which include uplink and transmission has seen some of very revolutionary inventions of modern science.The television delivery system has now moved from terr estrial transmission through analog signals to encrypted digital signals through internet as considerably as IPTV (Anderson, 2006). The sport world through television is now very much eager to move from TV being delivered through cable to Internet Protocol Television with content being viewed through technologies used for computer networks (Lu, 2006). The last decade of the 20th century witnessed the massive growth in Internet Protocol based serve.Now with the fast development of hardware and software technologies, this internet world has now developed to accommodate services like VoIP and many other telecom products (Wikipedia, 2007). It is a system which delivers digital television services to registered subscribers in a managed network with send based technology. The unique IP address of a subscriber provides him a virtual address over a network and creates a connector between the service provider and the television (Wikipedia, 2007). 4. Television through IPTV a new experi ence IPTV is dismission to give the most electrifying experience to its subscribers.Its not just seamless TV view but also more interactive and personalized. Things like participation in a game memorialize or any discussion board will only require the use of the remote charm sitting on the couch. Now the user will not feel being bombarded with a long list of channels rather get a very creative option to receive them with a much richer experience (International Engineering Consortium, 2007). The two-way signal broadcasting system through the network over which IPTV depends, allows the viewers to make selection that too on demand with time shift option.The additional services which can also be incorporated with IPTV are the Web Browsing i. e. surfing the internet, gaming with a game console with the current system and finally the communication applications which can enable email, MMS, Chat, etc (Telecom Italia, 2006). Figure 1 (IPTV delivery Infrastructure) The Set-Top Box which h as made this IPTV happen which at one end is connected to the TV perplex while the other end to an ADSL connection can easily be made to supply open TV services (BTV) as well as Video On Demand (VOD) services.This BTV facilitates the simultaneous reception by the users of a traditional TV channel. And using multicasting protocols IPTV can make available services which are similar to experiences of a traditional TV like Free-to-air or Pay TV or a Pay-Per-view service (Luarel Networks). The same IPTV can be used by service providers to provide the VOD service which is made available on request. The VOD service requires implementation through IP unicast protocols (Ericsson, 2006). The enhanced IPTV can also make Personal Video Recorder (PVR) services available.The local PVR makes way for video-recording on the STB hard-disk with another set of functions for live, give over and replay. Similarly the Network-based PVR stores the data on the operators server which is generally used fo r VOD (International Engineering Consortium, 2007). On technological point, the IPTV makes way for better utilization of available infrastructure like the bandwidth. Traditional transmission technology actually sends more than hundred channels simultaneously while the IPTV requires just one channel to be sent to the subscriber at a time.Every time the user selects a channel or a program, a new streaming takes place with data related to the newly selected channel (Anderson, 2006). 5. IPTV more than Advantages, More services More Business The IPTV will lead to a very new direct of interactivity among Internet and data mainly as voice and video. A cable based TV network beams data in form of video mostly in MPEG format through an explicit bandwidth parcel of land while the internet which enables high speed data transfer works on an IP based network and the data transfer is based on packets rather than streams.Both the technologies are technically very different. This IPTV is an ama lgam of two the successful technologies. Being a data-centric application, the packets over this network can deliver both video as well as data (International Engineering Consortium, 2007). Figure 2 Telecommunications IPTV system resolving power The traditional cable network is often overloaded with more than 100 channels being familial simultaneously. So there is a limitation of maximum number of channels that can be made available to the subscriber.IPTV has a very clear advantage (Times News Network, 2006). Theoretically this technology can make almost infinite number of channels at the customers disposal. The transmission line actually transmitted a single channel which has been demanded by the customer. So the infrastructure usage per customer is negligible while opening a new era of almost every channel on the planet being made available to the user. The IP technology being a packet based product requires an acknowledgement to be sent to the ascendant for every packet.This ensures that every packet sent by the source should remain intact and any loss of data will require resending of the same packet. This feature ensures very high quality of the product which the subscriber will receive (Anderson, 2006). The advantages associated to IPTV is not just conventional entertainment and advertisement based business but the technology can have its usage in ontogenesis new products which can make way to many other forms of businesses. The web based training is one of the many other possibilities.The IPTV network can be used to run different courses by making the videos of the classes available to the registered students (International Engineering Consortium, 2007). IPTV is the next overlarge thing after telecom and internet. The business possibilities associated with this technology is almost as broad as the human thought. Almost all telecom companies are putting big money in exploration and marketing of this product (Blau, 2005). The business network and th e corporate LANs may be greatest beneficiary with the delivery of videos and television content.The customized content delivery and the extremely ready network will reduce the theft cases to negligible. Customization facility will help the advertisers to understand the behavior of consumers and and then will go for personalized ads that will translate into significant business returns (Iyer, 2005). 6. Conclusion The IPTV is going to be the next big thing in communication and media industry. With money pouring inform all big telecom companies IPTV is going to be a very serious business with entertainment becoming more and more customizable.The subscriber will experience a very different medium of entertainment with highest take aim of interactivity and almost innumerable possible services that too very much on his own wishes. 7.Bibliography Anderson, N. (2006) An inlet to IPTV. Available from http//arstechnica. com/guides/other/iptv. ars Accessed 10 October 2007 Blau, J. (2005) I nternet TV Still Fuzzy, but Promising. IDG News ServiceAvailable from http//www. pcworld. com/news/clause/0,aid,122138,00. asp Accessed 10 October 2007 Cisco Systems, 2006. Wide Area Network. http//www. cisco. com/univercd/cc/td/doc/cisintwk/ito_doc/introwan. htm Accessed 10 October 2007