Years after communication matured into written and print media, Man needed the collection of useful material assembled in such a way, they are retrieved for his use, or saved for posterity. So the library was born. A library system took shape. In the traditional sense, a library is a collection of books. It also meant the building, the room that houses such a collection.
The term "library" has itself later acquired a secondary meaning: "a collection of useful material for common use." This sense is used in fields such as computer science, mathematics, statistics, electronics and biology.
Then library bloomed as a science. The retrieval of information became easy from huge storage. Today's libraries are repositories and access points for print, audio, and visual materials in numerous formats, including maps, prints, documents, microform (microfilm/microfiche), audio tapes, CDs, cassettes, videotapes, DVDs, video games, e-books, e-audiobooks and many other electronic resources.
Thus, modern libraries are extending services beyond the physical walls of a building, by providing material accessible by electronic means, and by providing the assistance of librarians in navigating and analyzing tremendous amounts of information with a variety of digital tools.
In the past couple of years, more and more people are using the Internet to gather and retrieve data. The shift to digital libraries has greatly impacted the average person's use of physical libraries.
Between 2002 and 2004, the average American academic library saw its overall number of transactions decline approximately 2.2%. Libraries are trying to keep up with the digital world and the new generation of students that are used to having information just one click away. For example, The University of California Library System saw a 54% decline in circulation between 1991 to 2001 of 8,377,000 books to 3,832,000.
These facts might be a consequence of the increased availability of e-resources. In 1999-2000, 105 ARL university libraries spent almost $100 million on electronic resources, which is an increase of nearly $23 million from the previous year. A 2003 report by the Open E-book Forum found that close to a million e-books had been sold in 2002, generating nearly $8 million in revenue. Another example of the shift to digital libraries can be seen in Cushing Academy’s decision to dispense with its library of printed books — more than 20,000 volumes in all — and switch over entirely to digital media resources.
One claim to why there is a decrease in the usage of libraries stems from the observation of the research habits of undergraduate students enrolled in colleges and universities. There have been claims that college undergraduates have become more used to retrieving information from the Internet than a traditional library. As each generation becomes more in tune with the Internet, their desire to retrieve information as quickly and easily as possible has increased.
There is no doubt that finding information by simply searching the Internet is much easier and faster than reading an entire book. In a survey conducted by NetLibrary, 93% of undergraduate students claimed that finding information online makes more sense to them than going to the library. Also, 75% of students surveyed claimed that they did not have enough time to go to the library and that they liked the convenience of the Internet.
While the retrieving information from the Internet may be efficient and time saving than visiting a traditional library, research has shown that undergraduates are most likely searching only .03% of the entire web. The information that they are finding might be easy to retrieve and more readily available, but may not be as in depth as information from other resources such as the books available at a physical library.
A Digital Library also known as a Virtual Library or an Electronic Library. It is an online facility. In other words it may mean a website which offers links to various sites with a large store of information in a catalogued or archived form. The term is more often used to refer in a collective manner to the entire number of online books and other literary material related to any subject available on the Internet.
A virtual library generally is part of a network with linkages to other libraries providing universal access to information through virtual libraries which are off-shoots of conventional ones which require you to be a member first. Universities that offer a distance education facility more often than not have a virtual library for their students. Distance education is more popular now.
A digital library is a library in which collections are stored in digital formats (as opposed to print, microfilm, or other media) and accessible by computers. The digital content may be stored locally, or accessed remotely via computer networks. A digital library is a type of information retrieval system.
As the library science is growing, now a thin line is drawn between digital library and virtual library, although both terms were used interchangeably. Now virtual library is now primarily used for libraries that are virtual in other senses (such as libraries which aggregate distributed content).
A distinction is often made between content that was created in a digital format, known as born-digital, and information that has been converted from a physical medium, e.g., paper, by digitizing. The term hybrid library is sometimes used for libraries that have both physical collections and digital collections.
Many academic libraries are actively involved in building institutional repositories of the institution's books, papers, theses, and other works which can be digitized or were 'born digital'. Many of these repositories are made available to the general public with few restrictions, in accordance with the goals of open access, in contrast to the publication of research in commercial journals, where the publishers often limit access rights. Institutional, truly free, and corporate repositories are sometimes referred to as digital libraries.
The advantages of digital libraries as a means of easily and rapidly accessing books, archives and images of various types are now widely recognized by commercial interests and public bodies alike.
Traditional libraries are limited by storage space; digital libraries have the potential to store much more information, simply because digital information requires very little physical space to contain it. As such, the cost of maintaining a digital library is much lower than that of a traditional library.
A traditional library must spend large sums of money paying for staff, book maintenance, rent, and additional books. Digital libraries may reduce or, in some instances, do away with these fees. Both types of library require cataloguing input to allow users to locate and retrieve material. Digital libraries may be more willing to adopt innovations in technology providing users with improvements in electronic and audio book technology as well as presenting new forms of communication such as wikis and blogs; conventional libraries may consider that providing online access to their OPAC catalogue is sufficient. An important advantage to digital conversion is increased accessibility to users.
The advantages in short are:
No physical boundary. The user of a digital library need not to go to the library physically; people from all over the world can gain access to the same information, as long as an Internet connection is available.
Round the clock availability A major advantage of digital libraries is that people can gain access 24/7 to the information.
Multiple access. The same resources can be used simultaneously by a number of institutions and patrons.
Information retrieval. The user is able to use any search term (word, phrase, title, name, subject) to search the entire collection. Digital libraries can provide very user-friendly interfaces, giving clickable access to its resources.
Preservation and conservation. Digitization is not a long-term preservation solution for physical collections, but does succeed in providing access copies for materials that would otherwise fall to degradation from repeated use. Digitized collections and born-digital objects pose many preservation and conservation concerns that analog materials do not. Please see the following "Problems" section of this page for examples.
Space. Whereas traditional libraries are limited by storage space, digital libraries have the potential to store much more information, simply because digital information requires very little physical space to contain them and media storage technologies are more affordable than ever before.
Added value. Certain characteristics of objects, primarily the quality of images, may be improved. Digitization can enhance legibility and remove visible flaws such as stains and discoloration.
Easily accessible.
