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Saturday, January 4, 2014

TELECAST MEDIA AND ITS LIBRARIES

Telecast Medias and Its Libraries

Until recent time, “media” was clearly defined and consisted of eight media industries: books, newspapers, magazines, recordings, radio, movies, television and the Internet. With the explosion of digital communication technology in the late 20th and early 21st centuries, the question of what forms of media should be classified as “Media" has become more prominent now.
It refers collectively to all media technologies that are intended to reach a large audience via mass communication. Broadcast media (also known as electronic media) transmit their information electronically and compris of technologies like  television, film and radio, movies, CDs, DVDs and some other devices like cameras and video consoles. Alternatively, print media use a physical object as a means of sending their information, such as a newspaper, magazines, brochures, newsletters, books, leaflets and pamphlets. The term also refers to the organizations which control these technologies, such as television stations or publishing companies. Internet media is able to achieve mass media status in its own right, due to the many mass media services it provides, such as e-mail, websites, blogs, Internet and television. For this reason, many mass media outlets have a presence on the web, by such things as having TV ads which link to a website, or having games in their sites to entice gamers to visit their website. In this way, they can utilise the easy accessibility that the Internet has, and the outreach that Internet affords, as information can easily be broadcast to many different regions of the world simultaneously and cost-efficiently. Outdoor media is a form of mass media which comprises bill boards, signs, placards placed inside and outside of commercial buildings and /objects like shops amd buses, flying billboards (signs in tow of airplanes), blimps, and skywriting. Public speaking and event organising can also be considered as forms of mass media.
The history of mass media can be traced back to the days when dramas were performed in various ancient cultures. This was the first time when a form of media was "broadcast" to a wider audience. The first dated printed book known is the "Diamond Sutra", printed in China in 868 AD, although it is clear that books were printed earlier. Movable clay type was invented in 1041 in China. However, due to the slow spread of literacy to the masses in China, and the relatively high cost of paper there, the earliest printed mass-medium was probably European popular prints from about 1400.The term "mass media" was coined with the creation of print media, which is notable for being the first example of mass media, as we use the term today.

Telecast
Cable programs are often telecast simultaneously with radio and television programs, but have a more limited audience. By coding signals and having a cable converter box in homes, cable also enables subscription-based channels and pay-per-view services.
A telecasting organisation may broadcast several programmes at the same time, through several channels (frequencies), for exampleBBC One and Two. On the other hand, two or more organisations may share a channel and each use it during a fixed part of the day.Digital radio and digital television may also transmit multiplexed programming, with several channels compressed into one ensemble.

When broadcasting is done via the Internet the term webcasting is often used. In 2004 a new phenomenon occurred when a number of technologies combined to produce podcasting. Podcasting is an asynchronous broadcast/narrowcast medium, with one of the main proponents being Adam Curry and his associates the Podshow.

 Telecast Media library

The term media library is considerably used same as an ordinary library.The main feature are the collection and storage medium are different than from a standard library.It mainly depict in a visual or a broadcasting channel.  The electronic media libraries with their holdings of different Audio Visual (AV) materials have been playing a vital role in dissemination different useful information to the society. The information from different disciplines are collected, recorded and stored in the libraries for the purpose of telecasting with the help of satellite service throughout the world within seconds.

            The electronic media libraries do not follow the traditional acquisition system of libraries. The libraries acquire blank tapes directly from the authority. The tapes are procured monthly as per the library requirement from the companies such as Sony, Panasonic, and Fuji etc. by the office, where library needs to verify the number of tapes. After procuring, the tapes are provided serial numbers that is basically treated as “Accession number”. The tapes are pasted with two labels, one for the tape number and another for future use. The cover page of
the tape has a label pasted having information pertaining to tape’s duration (in minutes), company name, etc. Additional information such as Accession number, programme name, number of episodes, etc. can
also be recorded in the same label. The library also receives tapes from the outside producers and advertising agencies. These tapes are no recorded in the library collection and being returned to the producer and advertising agency after the use. However, some inventory are maintained for future use for these tapes.
           
            In the TV channel libraries all most in Kerala materials are classified according to their content. Program tapes are kept in program shelf in alphabetical order separated by source and edited tapes. News tapes
and DVDs are kept in news shelf in chronological order. Tapes of archival values and stock shots are kept in archival shelf. The song, cinema, and advertisement tape gets separate shelf. General source tapes are kept in source shelf followed by the tape number. This system helps the entire library staff for easy and speed retrieval of materials.The library gets problem in classifying the multi-subject material as a single tape, CD and DVD can store multiple programs together such as interviews on different subjects, songs based on program, currentaffairs and sports. The library receiving several materials in a day causes serious problem in arrangement.

            Mostly, media libraries in Guwahati are closed accessed library and do not follow defined cataloguing format scuh as AACR-II or bibliographic format such as MARC-21 for rendering the information in library system. Although the libraries does not prepare any catalogue card and keep them separately, but they keep one piece of paper having some general information inside the cover of the tape named as Doop sheet or Log sheet.

            The general concept of circulation cannot be applied in electronic media libraries. The materials of electronic media library are not issued for personal use. The materials have to use for some activities like editing News Bulletin or program which are mainly related to the organization and most importantly the issue materials are not allowed to take beyond the organization area. Therefore, like the other (acquisition, classification) the circulation system of the electronic media libraries is also differs from the circulation system of the general libraries. There are many record registers maintained for transaction or circulation of the materials. The records are maintained both manually as well as in computer. Some of the registers that are maintained by the electronic media (specially the private satellite channel) libraries for circulation of the materials are as follows

            In traditional library, the arrangements of library resources are made according to the class number and accession number of the material, but, in the media libraries in all over Kerala, the librarians provide class number and accession number according to the suitability of their system. Therefore, the arrangements of the library materials are made accordingly. In satellite channel libraries, the materials are arranged according to their content. Program tapes are kept in program shelf in alphabetical order separated by source and edited tapes. The tapes are kept upright in the wooden racks, drawers & glass stacks in most of channels in Glass Stacks. The arrangements of the materials are made making tag (having accession number) visible.

            It is a broad field of study, but essentially is the process of managing data as a resource that is valuable to an organization. One of the largest organizations that deal with data management, DAMA (Data Management Association), states that data management is the process of developing data architectures, practices and then expecting these aspects on a regular basis. There are many topics within data management; some of the more popular topics include data modelling, data warehousing, data movement, database administration and data mining.


 Origin and Development of the Telecast Media

Since past few years digital information sources like cyber informatics, e-books, and e-data bases have increased considerably. The traditional library systems are transforming itself into hybrid information systems having a mix of digital and traditional paper resources. In the present scenario because of hi-tech developments in science and technology and information technology the form of information sources and services is witnessing a drastic change. Digital library and services through electronic media are the prestigious issues of modern library concept. The user community has become more familiar with the medium over time and has started to actively bid for alternative forms of access. Technology improvement in the communication network paired with the decreasing cost of hardware, create greater incentives for innovation.
           

            “Visual media” is also sometimes referred to as the "mainstream media" in fact, due to the tendency of media choosing to choose prominent, yet trivial, stories, which will be of interest to a general audience, whilst ignoring controversial or intellectually stimulating news. This trend is attributed to the fact that media, though used to provide a service to the public to keep them updated, is essentially a business and will naturally do what it must to sell their television or newspapers etc. Visual media has become one of the main sources of news, information and entertainment for the general public, and over the past century, “mass media” has become a globally huge industry.
In its early stages of development, television employed a combination of optical, mechanical and electronic technologies to capture, transmit and display a visual image. By the late 1920s, however, those employing only optical and electronic technologies were being explored. All modern television systems relied on the latter, although the knowledge gained from the work on electromechanical systems was crucial in the development of fully electronic television.

The first images transmitted electrically were sent by early mechanical fax machines, including the pantelegraph, developed in the late nineteenth century. The concept of electrically powered transmission of television images in motion was first sketched in 1878 as the telephonoscope, shortly after the invention of the telephone. At the time, it was imagined by early science fiction authors, that someday that light could be transmitted over copper wires, as sounds were.

The idea of using scanning to transmit images was put to actual practical use in 1881 in the pantelegraph, through the use of a pendulum-based scanning mechanism. From this period forward, scanning in one form or another has been used in nearly every image transmission technology to date, including television. This is the concept of "rasterization", the process of converting a visual image into a stream of electrical pulses.
In 1884 Paul Gottlieb Nipkow, a 23-year-old university student in Germany, patented the first electromechanical television system which employed a scanning disk, a spinning disk with a series of holes spiraling toward the center, for rasterization. The holes were spaced at equalangular intervals such that in a single rotation the disk would allow light to pass through each hole and onto a light-sensitive selenium sensor which produced the electrical pulses. As an image was focused on the rotating disk, each hole captured a horizontal "slice" of the whole image.
Nipkow's design would not be practical until advances in amplifier tube technology became available. The device was only useful for transmitting still "halftone" images—represented by equally spaced dots of varying size—over telegraph or telephone lines. Later designs would use a rotating mirror-drum scanner to capture the image and a cathode ray tube (CRT) as a display device, but moving images were still not possible, due to the poor sensitivity of the selenium sensors. In 1907 Russian scientistBoris Rosing became the first inventor to use a CRT in the receiver of an experimental television system. He used mirror-drum scanning to transmit simple geometric shapes to the CRT. Using a Nipkow disk, Scottish inventor John Logie Baird succeeded in demonstrating the transmission of moving silhouette images in London in 1925,[3] and of moving, monochromatic images in 1926. Baird's scanning disk produced an image of 30 lines resolution, just enough to discern a human face, from a double spiral of lenses. This demonstration by Baird is generally agreed to be the world's first true demonstration of television, albeit a mechanical form of television no longer in use. Remarkably, in 1927 Baird also invented the world's first video recording system, "Phonovision": by modulating the output signal of his TV camera down to the audio range, he was able to capture the signal on a 10-inch wax audio disc using conventional audio recording technology. A handful of Baird's 'Phonovision' recordings survive and these were finally decoded and rendered into viewable images in the 1990s using modern digital signal-processing technology.
In 1926, Hungarian engineer Kalman Tihanyi designed a television system utilizing fully electronic scanning and display elements, and employing the principle of "charge storage" within the scanning (or "camera") tube.
By 1927, Russian inventor Léon Theremin developed a mirror-drum-based television system which usedinterlacing to achieve an image resolution of 100 lines. Also in 1927, Herbert E. Ives of Bell Labs transmitted moving images from a 50-aperture disk producing 16 frames per minute over a cable from Washington, DC to New York City, and via radio from Whippany, New Jersey. Ives used viewing screens as large as 24 by 30 inches (60 by 75 cm). His subjects included Secretary of Commerce Herbert Hoover.In 1927, Philo Farnsworth made the world's first working television system with electronic scanning of both the pickup and display devices,[11] which he first demonstrated to the press on 1 September 1928.
WRGB claims to be the world's oldest television station, tracing its roots to an experimental station founded on January 13, 1928, broadcasting from the General Electric factory in Schenectady, NY, under the call letters W2XB. It was popularly known as "WGY Television" after its sister radio station. Later in 1928, General Electric started a second facility, this one in New York City, which had the call lettersW2XBS, and which today is known as WNBC. The two stations were experimental in nature and had no regular programming, as receivers were operated by engineers within the company. The image of a Felix the Cat doll, rotating on a turntable, was broadcast for 2 hours every day for several years, as new technology was being tested by the engineers.In 1936 the Olympic Games in Berlin were carried by cable to television stations in Berlin and Leipzig where the public could view the games live.
In 1936s the German firm of Fernseh A.G. and the United States firm Farnsworth Television owned by Philo Farnsworth signed an agreement to exchange their television patents and technology to speed development of television transmitters and stations in their respective countries. On 2 November 1936 the BBC began transmitting the world's first public regular high-definition service from the Victorian Alexandra Palace in north London. It therefore claims to be the birthplace of television broadcasting as we know it today.In 1936, Kálmán Tihanyi described the principle of plasma display, the first flat panel display system.
Mexican inventor Guillermo González Camarena also played an important role in early television. His experiments with television (known as telectroescopía at first) began in 1931 and led to a patent for the "trichromatic field sequential system" color television in 1940, as well as the remote control.
Although television became more familiar in the United States with the general public at the 1939 World's Fair, the outbreak of World War II prevented it from being manufactured on a large scale until after the end of the war. True regular commercial television networkprogramming did not begin in the U.S. until 1948. During that year, legendary conductor Arturo Toscanini made his first of ten TV appearances conducting the NBC Symphony Orchestra, and Texaco Star Theater, starring comedian Milton Berle, became television's first gigantic hit show.
Amateur television (ham TV or ATV) was developed for non-commercial experimentation, pleasure and public service events by amateur radio operators. Ham TV stations were on the air in many cities before commercial TV stations came on the air.

Technological Impact
The word “Television” stands for a telecommunication medium for transmitting and receiving moving images that can be either  monochrome (black-and-white) or colored, with or without accompanying sound.
Commercially available since the late 1920s, the television set has become commonplace in homes, businesses and institutions, particularly as a vehicle for advertising, a source of entertainment, and news. Since the 1970s the availability of video cassettes, laser discs,DVDs and now Blu-ray Discs, have resulted in the television set frequently being used for viewing recorded as well as broadcast material. In recent years Internet television has seen the rise of television available via the Internet, e.g. iPlayer and Hulu.
Although other forms such as closed-circuit television (CCTV) are in use, the most common usage of the medium is for broadcast television, which was modelled on the existing radio broadcasting systems developed in the 1920s, and uses high-powered radio-frequency transmitters to broadcast the television signal to individual TV receivers.
The broadcast television system is typically disseminated via radio transmissions on designated channels in the 54–890 MHz frequency band. Signals are now often transmitted with stereo or surround sound in many countries. Until the 2000s broadcast TV programs were generally transmitted as an analog television signal, but in 2008 the USA went almost exclusively digital.
A standard television set comprises multiple internal electronic circuits, including those for receiving and decoding broadcast signals. A visual display device which lacks a tuner is properly called a video monitor, rather than a television. A television system may use different technical standards such as digital television (DTV) and high-definition television (HDTV). Television systems

Television in India

Indian public service broadcaster, a division of Prasar Bharati. It is one of the largest broadcasting organizations in India in terms of the infrastructure of studios and transmitters. Recently, it has also started Digital Terrestrial Transmitters. On September 15, 2009, Doordarshan celebrated its 50th anniversary. The DD provides television, radio, online and mobile services throughout metropolitan and regional India, as well as overseas through the Indian Network and Radio India.

Doordarshan had a modest beginning with the experimental telecast starting in Delhi on 15 September 1959 with a small transmitter and a makeshift studio. The regular daily transmission started in 1965 as a part of All India Radio. The television service was extended to Bombay (now Mumbai) and Amritsar in 1972. Up until 1975, only seven Indian cities had a television service and Doordarshan remained the sole provider of television in India. Television services were separated from radio in April 1 1976[1]. Each office of All India Radio and Doordarshan were placed under the management of two separate Director Generals in New Delhi. Finally, in 1982, Doordarshan as a National Broadcaster came into existence.

Development of Television
Television came to India on September 15, 1959 with experimental transmission from Delhi. It was a modest beginning with a makeshift studio and low power transmitter. The objective was to find out what it can achieve in community development and formal education. The funding of $20,000 and equipment was offered by United States. One hundred and eighty teleclubs were set up within the range of 40 Kilometers of transmitter. Every club was provided with a television set by UNESCO. All India Radio provided the engineering and the programme professionals.The Akashvani Auditorium was converted into the studio from where the regular programmes of Indian TV were put on the air although the first experimental programmes were telecast from a makeshift studio in Akashvani Bhavan.The service itself was also known as a Pilot project, aided by UNESCO, because the programmes, put out on mere two days a week, was intended to be experimental in nature to test the efficacy of television medium in carrying relevant and useful messages of social education to the power section of society.In 1961 television programmes for teachers were started. A daily one hour service with a news bulletin was started in 1965 including entertainment programmes. In 1967 rural programmes and Krishi Darshan were started for farmers in 80 village teleclubs in Delhi and Haryana.
Television is one of the major mass media in India. It is a huge industry which has thousands of programmes in many languages. The small screen has produced numerous celebrities, some even attaining national fame. TV soaps are extremely popular with housewives as well as working women. Approximately half of all Indian households own a television. As of 2010, the country has a collection of free and subscription services over a variety of distribution media, through which there are over 515 channels of which 150 are pay channels. According to Pioneer Investcorp, the Indian cable industry is worth INR  270 billion (US$5.39 billion) and is the third largest in the world after television in the People's Republic of China and television in the United States. The number of TV homes in India grew from 120 million in 2007 to 148 million in 2011. Cable reaches 94 million homes with 88 million analogue connections and 6 million digital ones, while DTH has commanded 41 million subscribers.
            Terrestrial television in India started with the experimental telecast starting in Delhi on 15 September 1959 with a small transmitter and a makeshift studio. The regular daily transmission started in 1965 as a part of All India Radio. The television service was extended to Bombay (now Mumbai) and Amritsar in 1972. Up until 1975, only seven Indian cities had a television service and Doordarshan remained the sole provider of television in India. Television services were separated from radio in 1976. National telecasts were introduced in 1982. In the same year, colour TV was introduced in the Indian market. Indian small screen programming started off in the early 1980s. At that time there was only one national channel Doordarshan, which was government owned. The Ramayana and Mahabharata (both Indian mythological stories) were the first major television series produced. This serial notched up the world record in viewership numbers for a single program. By the late 1980s more and more people started to own television sets. Though there was a single channel, television programming had reached saturation. Hence the government opened up another channel which had part national programming and part regional. This channel was known as DD 2 later DD Metro. Both channels were broadcast terrestrially.

 Nation wide transmission

National telecasts were introduced in 1982. In the same year, colour TV was introduced in the Indian market with the live telecast of the Independence Day speech by then prime minister Indira Gandhi on 15 August 1982, followed by the 1982 Asian Games which were held in Delhi. Now more than 90 percent of the Indian population can receive Doordarshan (DD National) programmes through a network of nearly 1,400 terrestrial transmitters. There are about 46 Doordarshan studios producing TV programmes today

The Regional Languages Satellite channels have two components – The Regional service for the particular state relayed by all terrestrial transmitters in the state and additional programmes in the Regional Language in prime time and non-prime time available only through cable operators. DD-Sports Channel is exclusively devoted to the broadcasting of sporting events of national and international importance. This is the only Sports Channels which telecasts rural sports like Kho-Kho, Kabbadi etc..

 Network

The central government launched a series of economic and social reforms in 1991 under Prime Minister Narasimha Rao. Under the new policies the government allowed private and foreign broadcasters to engage in limited operations in India. This process has been pursued consistently by all subsequent federal administrations. Foreign channels like CNN, Star TV and domestic channels such as Zee TV and Sun TV started satellite broadcasts. Starting with 41 sets in 1962 and one channel, by 1985 TV in India covered more than 70 million homes giving a viewing population of more than 400 million individuals through more than 100 channels.
There are at least five basic types of television in India: broadcast, or "over-the-air" television, unencrypted satellite or "free-to-air", Direct Broadcast Satellite, cable television, and IPTV (internet protocol television).
Over-the-air and free-to-air TV is free with no monthly payments while Cable, Direct Broadcast Satellite, and IPTV require a monthly payment that varies depending on how many channels a subscriber chooses to pay for. Channels are usually sold in groups, rather than singly.


Satellite television

As of 2010, over 500 TV Satellite television channels are broadcast in India. This includes channels from the state-owned Doordarshan,News Corporation owned STARTV, Sony owned Sony Entertainment Television, Zee TV, Sun Network and Asianet.MTV,Channel V,Direct To Home service is provided by Airtel Digital Tv, BIG TV owned by Reliance, DD Direct Plus, DishTV, Sun Direct DTH, Tata Sky and Videocon D2H. DishTV was the first one to come up in Indian Market, others came only years later.

 Important Telecast channel functionning in India
The drastic changes of technology in the visual media,there have apply in a manner consistent with so many broadcsting media in the world distinctly greater extent in India.In India the new policy from Prasar Bharathy they determine NOC to the various oraganisations.The prime moto of almost every television channels are to get commintment for the society and people.The main factor point out that the advertisement field controlled by televeison industry that goes to an economic disequilibrium in a constant level.
 Doordarshan
Doordarshan is an Indian public service broadcaster, a division of Prasar Bharati. It is one of the largest broadcasting organizations in India in terms of the infrastructure of studios and transmitters. Recently, it has also started Digital Terrestrial Transmitters. On September 15, 2009, Doordarshan celebrated its 50th anniversary. The DD provides television, radio, online and mobile services throughout metropolitan and regional India, as well as overseas through the Indian Network and Radio India.The Doordarshan was the first satellite channel in india and started in the year 1959 in the perion of Jawaharlal Nehru.The other channels are DD News,DD Sports and  DD National ect.
Cable News Network-Indian Broadcasting Network (CNN-IBN)
Cable News Network-Indian Broadcasting Network (CNN-IBN) is an English-language Indian television news channel. The network is a partnership between Global Broadcast News (GBN) and Turner International (Turner) in India .The Indian company GBN runs the channel completely but uses the CNN brand name, in return gave 26% stake to Time Warner.
 Aaj Tak 
Aaj Tak is a 24-hour Hindi news television channel owned by TV Today Network Ltd..Watched by some 45 million viewers in India’s cable and satellite universe, Aaj Tak is one of India’s largest privately owned news channels. Aaj Tak was free-to-air channel till 2006 in India, while it offered as a pay channel in the overseas market. In the United States.Started in December 31,1999,Owned by India Today Today,broadcasting from Noida,Uttar Pradesh,India.
 Times Now
Times Now is a 24-hour English news channel based in Mumbai and broadcasted in India, Singapore and USA.The cahnnel located at Mumbai and started in the year 2006.

 NDTV

NDTV 24x7 is an Indian English language television network that carries news and current affairs in India, it is owned by New Delhi Television Ltd. NDTV 24x7 is also available outside of India, broadcasting in the UK on the Sky and Virgin Media platforms, in the USA on the Dish Network platform, in Canada available via a partnership with Asian Television Network, in Australia on the Vision Asia platform, and in Singapore on the mio TV platform. Launched in 2003 HQ located at New Delhi.
 Asianet
Asianet is an Indian general entertainment channel broadcasting in the south Indian language of Malayalam which is widely spoken in the Indian state of Kerala, some regions of Tamil Nadu, Karnataka and among Malayalee expatriates in the Middle East region. In terms of viewership, Asianet is often regarded as the most popular Malayalam-language television channel.Based in Thiruvananthapuram .Asianet was the first privately owned television channel in Malayalam and the second to broadcast in the language and started in 1993.
 Surya TV 
Surya TV is a Malayalam television channel in India. Established in 1998 October 7, Surya TV is the first digital channel in India and now the channel is telecasted in MPEG4 format. The channel is part of Sun Network and telecasts entertainment and movie based programs.
 Kairali TV
Kairali Channel is one of the leading regional channel in malayalam,started on Auguest 16,2000,Head quarters at Thiruvananthapuram,Kerala and the main feature of this channel that owned by two lakhs fifty thousand share holders.Malayalam actor Padmasree Mammootty is the Chairman of this televison Channel.
 India Vision
Indiavision is an Indian news channel in Malayalam language based at Kochi, Kerala state. Founded in 2003, it was the first exclusive news channel in Malayalam. It has its registered office at Edappally in Kochi and its telecasting studio is located at Padivattom, Kochi
 Amrita TV
Amrita TV, launched in 2005, as a 24-hour Malayalam, general entertainment & news satellite channel with a global footprint, has been honoured with 54 State Awards for Excellence in Television—the only channel in India to be bestowed with such a recognition in just two years since inception. Amrita TV has been in the forefront in delivering programmes which are endearing, enriching and entertaining.

Mazhavil Manorama 
Mazhavil Manorama is a Malayalam general entertainment television channel from the Malayala Manorama group. The channel is on air from on 2011. The Malayala Manorama group is already into TV media through their Malayalam news channel, Manorama News. Mazhavil Manorama is headquartered at Aroor Near Kochi, Kerala.
Only Doordarshan Malayalam have the only channnel from the public sector,the statistics point out that a 26% of the viewrs prefer Asianet,22% of them are viewers of Surya and 17% of them prefering Kairali TV and 14% depict Mazhavil Manorama then rest of the other channel shares resmaining viewership.Here the above data shows that almost the market and investment occupied by the leading channels like Asianet,surya and so on.

Telecast Media Technologies.

In present scenario because of hi-tech develop ment in science technology and information technology the form of sources and services is witnessing a drastic change in telecast and broadcasting technology. Although there is certainly a relationship between science and technology, there is, except in certain high technology industries, very little technology that could be classified as applied science. Technology is marked by different purposes, different processes a different relationship to established knowledge and a particular relationship to specific contexts of activity. Technological enterprises are determined not by advances in knowledge nor simply by the identification of needs, but by social interests. Of the potential new technologies available at any one time only a few are developed and become widely implemented in the area of broadcasting and media technologies.

 Evolution of Electronic Media

Historically, there have been several different types of electronic media broadcasting:

( i )Telephone broadcasting (1881–1932):
The earliest form of electronic broadcasting (not counting data services offered by stock telegraph companies from 1867, if ticker-tapes are excluded from the definition). Telephone broadcasting began with the advent of Theatrophone ("Theatre Phone") systems, which were telephone-based distribution systems allowing subscribers to listen to live opera and theatre performances over telephone lines, created by French inventor
( ii )Telephone News Paper Service
 Clément Ader in 1881. Telephone broadcasting also grew to include telephone newspaper services for news and entertainment programming which were introduced in the 1890s, primarily located in large European cities. These telephone-based subscription services were the first examples of electrical/electronic broadcasting and offered a wide variety of programming.
( iii )Radio broadcasting
Experimentally from 1906, commercially from 1920): radio broadcasting is an audio (sound) broadcasting service, broadcast through the air as radio waves from a transmitter to an radio antenna and, thus, to a receiver. Stations can be linked in radio networks to broadcast common radio programs, either in broadcast syndication, simulcast or subchannels.
( iv )Television broadcasting (Telecast)
 Experimentally from 1925, commercial television from the 1930s: this television programming medium was long-awaited by the general public and rapidly rose to compete with its older radio-broadcasting sibling.
( v )Cable Radio
 It is also called "cable FM", from 1928 and cable television (from 1932): both via coaxial cable, serving principally as transmission mediums for programming produced at either radio or television stations, with limited production of cable-dedicated programming.
( vi )Direct-Broadcast Satellite (DBS)
(From circa 1974) and satellite radio (from circa 1990): meant for direct-to-home broadcast programming (as opposed to studio network uplinks and downlinks), provides a mix of traditional radio or television broadcast programming, or both, with dedicated satellite radio programming.
( vii ) Webcasting
Of video/television (from circa 1993) and audio/radio (from circa 1994) streams: offers a mix of traditional radio and television station broadcast programming with dedicated internet radio-webcast programming.

 Different IT option for programmes (Programme Options)
Programmes produced for television transmission are broadly categorised in to three categories as News and Current Affairs; Education and Entertainment. The present study has covered all categories with a slant to news-based programmes; Some options of the new information technology tool are described here.

( i  )Mobile applications
 This is a big one. Libraries will start using a variety of these this year including those designed for library websites as well as by library database vendors and other library related mobile applications.
( ii ) QR Codes
 These are starting to show up and become popular in the business and marketing worlds and they will start to be used in libraries this year.
( iii ) Google Applications
Whether it’s collaborating with google docs, using google voice for text messaging or any of the other google applications. Google has a lot to offer libraries and more libraries will start using these. For eg:google scholar,googl search and so on.
( iv ) Twitter
 While more libraries may be using Facebook, in many ways, Twitter can offer more to libraries especially when it comes to reference and instant answers to questions.

( v ) Virtual reference
 While this is already offered at many libraries; new trends and offerings in the social media world make offering this service more practical than before. Whether it’s installing an instant chat application on a Facebook fan page, using a live video site such as ustream.tv or one of the many other free applications available through social media, virtual reference is more doable and approachable than it has been in many years.
( vi ) Online Sharing
 Increased collaboration between librarians at more than one institution as well as between faculty and librarians will occur thanks to social media tools that make this possible. Examples include twitter, twiddla, and many other white board and online sharing applications.

( vii )Social Media Classes
The present investigator social media classes- I started doing these at his library this year and he believes that many more libraries will follow suit. Using social media as a teaching tool and not just as a tool for library promotion. New applications by library vendors such as lib guides and gale and many others make this possible and they will only continue to see even more of these in 2011.

 Different Broadcasting Modes
The first regular television broadcasts began in 1937. Broadcasts can be classified as "recorded" or "live". The former allows correcting errors, and removing superfluous or undesired material, rearranging it, applying slow-motion and repetitions, and other techniques to enhance the program. However, some live events like sports television can include some of the aspects including slow-motion clips of important goals/hits, etc., in between the live television telecast.
American radio-network broadcasters habitually forbade prerecorded broadcasts in the 1930s and 1940s requiring radio programs played for the Eastern and Central time zones to be repeated three hours later for the Pacific time zone. This restriction was dropped for special occasions, as in the case of the German dirigible airship Hindenburg disaster at Lakehurst, New Jersey, in 1937. During World War II, prerecorded broadcasts from war correspondents were allowed on U.S. radio. In addition, American radio programs were recorded for playback by Armed Forces Radio radio stations around the world.
A disadvantage of recording first is that the public may know the outcome of an event from another source, which may be a "spoiler". In addition, prerecording prevents live radio announcers from deviating from an officially approved script, as occurred with propaganda broadcasts from Germany in the 1940s and with Radio Moscow in the 1980s.
Many events are advertised as being live, although they are often "recorded live" (sometimes called "live-to-tape"). This is particularly true of performances of musical artists on radio when they visit for an in-studio concert performance. Similar situations have occurred in television production and news broadcasting.
A broadcast may be distributed through several physical means. If coming directly from the radio studio at a single station or television station, it is simply sent through the studio/transmitter link to the transmitter and thence from the television antenna located on the radio masts and towers out to the world. Programming may also come through a communications satellite, played either live or recorded for later transmission. Networks of stations may simulcast the same programming at the same time, originally via microwave link, now usually by satellite.
Distribution to stations or networks may also be through physical media, such as magnetic tape, compact disc (CD), DVD, and sometimes other formats. Usually these are included in another broadcast, such as when electronic news gathering (ENG) returns a story to the station for inclusion on a news programme.
The final leg of broadcast distribution is how the signal gets to the listener or viewer. It may come over the air as with a radio station or television station to an antenna and radio receiver, or may come through cable television or cable radio (or "wireless cable") via the station or directly from a network. The Internet may also bring either internet radio or streaming media television to the recipient, especially with multicasting allowing the signal and bandwidth to be shared.


 Different Media Formats
            The telecast media formats,various formats are founded used in telecast media in the preset.Telecsat Media librarian should have a clear knowlwdge about these various formats with their relative merits and demerits,they are described below.
( i )Quadruplex Videotape: 2-inch quadruplex videotape (also called 2″ quad, or just quad, for short) was the first practical and commercially successful analog recording videotape format. It was developed and released for the broadcast television industry in 1956 by Ampex, an American company based in Redwood City, California. This format revolutionized broadcast television operations and television production, since the only recording medium available to the TV industry until then was film used for kinescopes, which was much more costly to utilize and took time to develop at a film laboratory.

( ii )Type B videotape: 1 inch type B VTR (designated Type B by Society of Motion Picture Television Engineers) is a reel-to-reel analog recording video tape format developed by the Bosch Fernseh division of Bosch in Germany in 1976,called the Bosch prototype BCN 20 with KCR camera. The magnetic tape format became the broadcasting standard in continental Europe, but adoption was only very limited in the United States and United Kingdom, where the Type C videotape VTR was met with greater success. The tape speed allowed 96 minutes on a large reel (later 120 minutes), and used 2 record/playback (R/P) heads on the drum rotating at 9000 RPM with a 190 degree wrap around a very small head drum, recording 52 video lines per head segment.

( iii )Type C videotape: 1 inch Type C (designated Type C by SMPTE) is a professional reel-to-reel analog recording helical scan videotape format co-developed and introduced by Ampex and Sony in 1976. It became the replacement in the professional video and broadcast television industries for the then-incumbent 2 inch Quadruplex videotape (2 inch Quad for short) open-reel format, due to the smaller size, comparative ease of operation (vs. 2 inch) and slightly higher video quality of 1 inch type C video tape recorder (VTR).1 inch Type C is capable of "trick-play" functions such as still, shuttle, and variable-speed play back, including slow motion. 2-inch Quadruplex videotape machines lacked these capabilities, due to the segmented manner in which it recorded video tracks onto the magnetic tape. Also, 1 inch Type C VTRs required much less maintenance (and used less power and space) than did 2-inch machines.

( iv )VHS:

The Video Home System (better known by its abbreviation VHS) is a consumer-level analog recording videocassette standard developed by Victor Company of Japan (JVC).The 1970s was a period when video recording became a major contributor to the television industry. Like many other technological innovations, each of several companies made an attempt to produce a television recording standard that the majority of the world would embrace.

( v )Optical Disc Format In later years, optical disc formats began to offer better quality than video tape. The earliest of these formats, Laserdisc, was not widely adopted, but the subsequent DVD (Digital Versatile Disc) format eventually did achieve mass acceptance and replaced VHS as the preferred method of distribution after 2000.[4] By 2006, film studios in the United States had stopped releasing new movie titles in VHS format. On December 31, 2008, the last major United States supplier of pre-recorded VHS tapes, Distribution Video Audio Inc. of Palm Harbor, Florida, shipped its final truckload. As of 2010, most of the VHS tapes being produced are 6 and 8 hour blank tapes.

( vi ) VHS-C: is the compact VHS videocassette format introduced in 1982 and used primarily for consumer-grade compact analog recording camcorders. The format is based on the same video tape as is used in VHS, and can be played back in a standard VHS VCR with an adapter. Though quite inexpensive, the format is largely obsolete even as a consumer standard and has been replaced in the marketplace by digital video formats, which have smaller form factors.

( vii ) Video 2000"Video Compact Cassette" redirects here. It is not to be confused with Compact Video Cassette. Also known as Video Compact Cassette, or VCC it was a consumer videocassette recorder system and analog recording video cassette standard developed by Philips and Grundig to compete with JVC's VHS and Sony's Betamax video technologies. Distribution of Video 2000 products began in 1979 and ended in 1988; they were marketed exclusively in most European countries, Brazil and Argentina.

( viii ) Video Cassette Recording (VCR) was an early domestic analog recording format designed by Phillips. It was the first successful consumer-level home video cassette recorder (VCR) system. Later variants included the VCR-LP and Super Video (SVR) formats.The VCR format was introduced in 1972, just after the Sony U-matic format in 1971. Although at first glance the two might appear to have been competing formats, they were aimed at very different markets. U-matic was introduced as a professional television production format, whilst VCR was targeted particularly at educational but also domestic users. Unlike some other early formats such as Cartrivision, the VCR format does record a high-quality video signal without resorting to Skip field. Home video systems had previously been available, but they were open-reel systems (most notably made by Sony) and were expensive to both buy and operate. They were also unreliable and often only recorded in black and white such as the EIAJ-1. The VCR system was easy to use and recorded in colour but was still expensive: the N1500 recorder cost nearly £600 in the United Kingdom when it was introduced in 1972, the equivalent of just over £6000 in 2009. By comparison a small car (the Morris Mini) could be purchased for just over £600.

( ix ) (vision electronic recording apparatus (VERA) was an early analog recording videotape format developed from 1952 by the BBC under project manager Dr Peter Axon.In order to record high frequencies, a tape must move rapidly with respect to the recording or playback head. The frequencies used by video signals are so high that the tape/head speed is on the order of several meters per second (tens of feet per second), an order of magnitude faster than professional analog audio tape recording. The BBC solved the problem by using 52-centimetre (20 in) reels of magnetic tape that passed static heads at a speed of 5.08 metres per second (16.7 ft/s).VERA was capable of recording about 15 minutes (e.g. 4572 meters) of 405-line black-and-white video per reel, and the picture tended to wobble because the synchronizing pulses that keep the picture stable were not recorded accurately enough.

( x )W-VHS is a HDTV analog recording video cassette format created by JVC. The format was originally introduced in 1994 for use with Japan's Hi-Vision, an early analog high-definition television system.W-VHS was named so because "W" in Japanese means "double".The recording medium of W-VHS is a ½-inch metallic magnetic tape stored in a cartridge of the same size as VHS. The tape can be used to store 1035i (HD) or 480i (SD) and a double channel of 480i (for storing 3D programs (Grove)(SD2) analog signals (but not 480p, 720p or 1080i). The video signal is recorded using a method called "time compression integration" which "records separated component video, luminance and color signals offset by time in alternating parts of the video track". (Hostroch,1973) Because video signals are recorded in component form instead of the S-Video (Y/C) color under method used by S-VHS, standard definition image quality for W-VHS is typically much higher, due to the lack of noise caused by a chromo sub-carrier. Audio is stored in the VHS Hi-Fi or S-VHS Digital Audio formats.
( xi ) Blu-ray Disc (official abbreviation BD) is an optical disc storage medium designed to supersede the DVD format. The plastic disc is 120 mm in diameter and 1.2 mm thick, the same size as DVDs and CDs. Blu-ray Discs contain 25 GB per layer, with dual layer discs (50 GB) being the norm for feature-length video discs. Triple layer discs (100 GB) and quadruple layers (128 GB) are available for BD-XL re-writer drives. The first Blu-ray Disc prototypes were unveiled in October 2000, and the first prototype player was released in April 2003 in Japan. Afterwards, it continued to be developed until its official release in June 2006.The name Blu-ray Disc refers to the blue laser used to read the disc, which allows information to be stored at a greater density than is possible with the longer-wave  length red laser used for DVDs.                                                                              
( xii ) D-1 is an SMPTE digital recording video standard, introduced in 1986 through efforts by SMPTE engineering committees. It started as a Sony and Bosch - BTS product and was the first major professional digital video format. SMPTE standardized the format within ITU-R 601, also known as Rec. 601, which was derived from SMPTE 125M and EBU 3246-E standards. D-1 stores uncompressed digitized component video, encoded at Y'CbCr 4:2:2 using the CCIR 601 raster format with 8 bits, along with PCM audio tracks as well as time code on a 3/4 inch (19 mm) Video cassette tape. Uncompressed component video used enormous bandwidth, 173 Mbit/sec (bit rate), for its time. The maximum record time on a D-1 tape is 94 minutes. The D-2 system soon followed, using composite video in order to lower the band width needed.
( xiii ) D-2 (Video) is a professional digital recording video cassette format created by Ampex and other manufacturers through a standards group of the Society of Motion Picture and Television Engineers (SMPTE) and introduced at the 1988 NAB (National Association of Broadcasters) (NAB) Convention as a lower-cost alternative to the D-1 format. Like D-1, D-2 video is uncompressed; however, it saves band width and other costs by sampling a fully encoded NTSC or PAL composite video signal, and storing it directly to magnetic tape, rather than sampling analog component video. This is known as digital composite. Ampex conceived of D-2 as a more practical solution for TV broadcasters since it could be inserted into existing broadcast air chains, television studios, and post-production linear editing facilities without extensive redesign or modifications.

( xiv) D-3 (Video) is an uncompressed composite digital video video cassette format invented at NHK, and introduced commercially by Panasonic in 1991 to compete with Ampex's D-2. It uses half-inch metal particle tape at 83.88 mm/s (compare to D-2's 19 mm and 131.7 mm/s). Like D-2, the video signal is sampled at four times the color subcarrier frequency, with eight bits per sample. Four channels of 48 kHz 16-20 bit PCM audio, and other ancillary data, are inserted during the vertical blanking interval. The aggregate net (error corrected) bitrate of the format is 143 Mbit/s, and because the codec is lossless, it has been used in data applications. Camcorders were available which used this format, and are to date the only digital tape camcorders to use a lossless encoding scheme.
( xv ) D-5 HD is a professional digital video format introduced by Panasonic in 1994. Like Sony's D-1 (8-bit), it is an uncompressed digital component system (10bit), but uses the same half-inch tapes as Panasonic's digital composite D-3 format. A 120 min D-3 tape will record 60 min in D-5/D-5 HD mode. D-5 standard definition decks can be retrofitted to record high definition with the use of an external HD input/output box. The HD deck conversion does not allow for any error correction that exists on standard definition recordings, as the full band width of the tape is required for the HD recording.D-5 HD uses standard D-5 video tape cassettes to record HD material, using an intra-frame compression with a 4:1 ratio. D-5 HD supports the 1080 and the 1035 interlaced line standards at both 60 Hz and 59.94 Hz field rates, all 720 progressive line standards and the 1080 progressive line standard at 24, 25 and 30 frame rates.
( xvi ) D-9 or Digital S as it was originally known, is a professional digital video cassette format created by JVC in 1995. It is a direct competitor to Digital Betacam. Its name was changed to D-9 in 1999 by the SMPTE. It is used mostly inside Europe and Asia, though has seen some use in the US, most notably by the FOX news channel.D-9 uses a tape shell of the VHS form factor, but the tape itself uses a much higher quality metal particle formulation. The recording system is digital and for video uses DV compression at a 50 Mbit/s bitrate.
( xvii ) D-9HD For High definition video recording, JVC developed an extension to D-9 called D-9 HD. D-9 HD uses twice the number of recording heads to record a 100Mbit/s video bitstream at resolutions of 720p60, 1080i60 and 1080p24. This variant is also able to record 8 channels of PCM audio at 16bit/48 kHz. This is ideal for mastering to AC3 or other multichannel audio compression formats used for broadcasting. The higher data rate means that the recording time of any given tape is cut in half.
( xvii ) Digital8 (or D8) is a consumer digital recording video cassette for camcorders based on the 8 mm video format developed by Sony, and introduced in 1999.The Digital8 format is a combination of the older Hi8 tape transport with the DV codec. Digital8 equipment uses the same video cassettes as analog recording Hi8 equipment, but differs in that the analog audio/analog video signal is encoded digitally (using the industry-standard DV codec.) Since Digital8 uses the DV codec, it has identical digital audio and digital video specifications. To facilitate digital recording on existing Hi8 videocassettes the helical scan video head drum spins 2.5x faster. For both NTSC and PAL Digital8 equipment, a standard-length 120-minute NTSC/90-minute PAL Hi8 magnetic tape cassette will store 60 minutes of Digital8 video (Standard Play) or 90 minutes (Long Play). LP is model specific, such as the TRV-30, TRV-40, and others. Digital8 recordings can be made on standard-grade Video8 cassettes, but this practice is discouraged in the Sony user manuals. Hi8 metal-particle cassettes are the recommended type for Digital8 recording, and most tapes currently sold are marked for both Hi8 and Digital8 usage.

( xix ) HDV is a format for recording of high-definition video on DV cassette tape. The format was originally developed by JVC and supported by Sony, Canon and Sharp. The four companies formed the HDV consortium in September 2003.Conceived as an affordable high definition format for digital camcorders, HDV quickly caught on with many amateur and professional videographers due to its low cost, portability, and image quality acceptable for many professional productions. HDV video and audio are encoded in digital form, using lossy compression. Video is encoded with the H.262/MPEG-2 Part 2 compression scheme, using 8-bit chroma and luma samples with 4:2:0 chroma subsampling.
( xx ) MicroMV was a proprietary videotape format introduced in 2001 by Sony. This cassette is physically smaller than a Digital8 or DV cassette. In fact, MicroMV is the smallest videotape format — 70% smaller than MiniDV or about the size of two US quarter coins. Each cassette can hold up to 60 minutes of video.The MicroMV format does not use the highly popular DV format. Instead, it uses 12 Mbit/s MPEG-2 compression, like that used for DVDs and HDV. Footage recorded on MicroMV format initially could not be directly edited with mainstream DV editing software such as Adobe Premiere or Apple Final Cut Pro; instead Sony supplied its own video editing software MovieShaker (for Windows PCs only). Later versions of Ulead Video Studio and several freeware applications however could capture and edit from Sony MicroMV Camcorders.MicroMV has not been a successful format.
( xx i )MicroMV was a proprietary videotape format introduced in 2001 by  /Sony. This cassette is physically smaller than a Digital8 or DV cassette. In fact, MicroMV is the smallest videotape format — 70% smaller than MiniDV or about the size of two US quarter coins. Each cassette can hold up to 60 minutes of video.
The MicroMV format does not use the highly popular DV format. Instead, it uses 12 Mbit/s MPEG-2 compression, like that used for DVDs and HDV. Footage recorded on MicroMV format initially could not be directly edited with mainstream DV editing software such as Adobe Premiere or Apple Final Cut Pro; instead Sony supplied its own video editing software MovieShaker (for Windows PCs only).
( xx ii ) ProHD is a name used by JVC for its MPEG-2-based professional camcorders. ProHD is not a video recording format, but rather "an approach for delivering affordable HD products" and a common name for "band width efficient professional HD models". Originally ProHD lineup consisted of shoulder mount HDV 720p camcorders and offered 24-frame/s progressive video recording and LPCM audio recording/playback. It is a common misconception that JVC developed ProHD as a proprietary extension to HDV. JVC has stressed out that 24-frame/s video and LPCM audio have always been part of the HDV format, but at the time they were initially offered no other HDV camcorder had them.
 Role of libraries in Telecast Media
"The common ground between library science and information science, which is a strong one, is in the sharing of their social role and in their general concern with the problems of effective utilization of graphic records. But there are also very significant differences in several critical respects, among them in:

q       Selection of problems addressed and in the way they were defined.
q       Theoretical questions asked and frameworks established.

q       The nature and degree of experimentation and empirical development and  the resulting practical knowledge/competencies derived.
q       Tools and approaches used.
q       The nature and strength of interdisciplinary relations established and the dependence of the progress and evolution of interdisciplinary approaches. All of these differences warrant the conclusion that librarianship and information science are two different fields in a strong interdisciplinary relation, rather than one and the same field, or one being a special case of the other."

In traditional library, the arrangements of library resources are made according to the class number and accession number of the material, but, in the media libraries in Kerala region, the librarians provide class number and accession number according to the suitability of their system. Therefore, the arrangements of the library materials are made accordingly. In satellite channel libraries, the materials are arranged according to their content. Program tapes are kept in program shelf in alphabetical order separated by source and edited tapes.
            A “Media library” is organized for use and maintained by an individual body, an organization, a corporation, or a private authority. Collections and services may be intended for use by mass who choose not to — or cannot afford to — purchase an extensive collection themselves, who need material no individual can reasonably be expected to have, or who require professional assistance with their mutual bodies of work. In addition to providing materials, media libraries also provide the services of librarians who are experts at finding and organizing information, documents and at interpreting employment needs.
 Some Question involved in Media Libraries    
            Ever since the process of economic liberalisation took off in India in early 90s, many private television channels have come up. For the first few years, the telecast media company libraries did not find much of the problems with regard to handling their collections. But as the time passed, it gradually became difficult to manage these libraries without ‘LIS’ qualified professionals and standard ‘LIS’ systems. With the passage of time the problem became more and more acute.
            Thus, it was high time to answer the questions like:
q       What is TV media organisations’ perception of a library?
q       How they process their information resources?
q       Up to what level they are able to satisfy their users?
q       What are the systems being followed for information storage and retrieval?
q       Is the manpower engaged in these libraries ‘LIS’ qualified?
q       What are the problems being faced by the TV media libraries and their users?
q       What is the information behaviour of the users of such libraries .
Social media, simply called mass media, is becoming more and more a must for libraries and many libraries are finding that when used properly it can be a great tool to save money and promote library services and collections and so on..

 Media Library Collections

            The entire Media Library collections are organized, classified subject wise and indexed for easy access and retrieval for the users. The Media Library has developed its own customised software called Video Library Computerized Information System (VILCIX) for management on the data available of the video programmes received in the Library from the seventeen Multimedia Centres. The data of the video programmes received in the Media Library are input into the database of the customized software developed for the purpose of access and retrieval of information of the video programmes. The Media Library database caters to the in-house needs such as information for planning, scheduling, marketing needs and also for bringing out the catalogue.

Evaluation of Media Library


            The evaluative study of the topic is mainly focussing that the study of visual media library is not conducted yet in any authentical format, and the working environment is really unknown to the informatics community. The topic covers almost all content coming under Library and Information Science. The methodology adopted to find out information from the various visual media in Kerala and the criteria for evaluation of media library system are generally discussed. The working pattern, collection maintenance, various services, duties and speciality details are provided which may be useful to the scholars, students, learners, institutions, and organizations.

Conclusion
The electronic media libraries with their holdings of different Audio Visual (AV) materials have been playing a vital role in dissemination of different useful information to the society. The information from different disciplines are collected, recorded and stored in the libraries for the purpose of telecasting with the help of satellite service throughout the world within seconds Electronic media libraries or AV media libraries are dealing with the management of non-print materials. The users of the media library are of special type who usually asks for instant and ready information specific to their variant needs. Proper management and easy retrieval of the required   information are very crucial for libraries of all the private satellite television channels as. Their ultimate performance and competitive survival will depend upon the availability and utilization of the information that will support and sustain in their business.       
References

1)     Grove, Pearce’s.
Non-print media in academic libraries, Chicago: America Library Association.P.X.
2)     Hostrop, Richard W.
Education inside the library media centere, Hamden: Shoe Sting Press, 1973,P.4-5
3)     Nolan, John L.
Audio-Visual material, Library trends 10, (October 1961). P.262
4)     Readers Digest Oxford: Complete word finder, New York: Clarenden Press, 1990.
5)     Rogers, Rutherford and Weber, David. University library administration, Newyork: Wilson Co, 1971,P.287.
6)     http://www.wikipedia.com accessed on 22nd March 201


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