The librarians are to be dealing the digital library, the virtual library, the hybrid library and the library without wall with all the time. According Arms (2000), digital library can defined as a managed collection of information, with associated services, where the information is stored in digital formats and accessible over a network. A crucial part of this definition is that the information managed. Digital library is a library that provides in digital forms. Even though widely used digital library, hybrid library has just appeared in the digital library research in the UK.
'Library'- a word that characterizes the entire universe of a savant. It is the compendium of abundant sources of knowledge about various topics. With the appearance of innovation, these library frameworks have additionally been altered with time. These days libraries give access to us at any point we have to think about as Books as well as Magazines, Periodicals, Original copies, Diaries, Expositions, e-books, CDs/DVDs and more. Presently libraries are not simply restricted to a mass of a building but are digitally open to us through virtual space, ordinarily known as Advanced Library or e-Library.
Definition A digital library is the collection of services and the collection of information objects that support users in dealing with information objects and the organization and presentation of those objects available directly or indirectly via electronic/digital means. Further, there must be an appropriate multimedia repository available for the storage of digital content and metadata. Other important elements are client services for the browser, including repository querying and workflow, content delivery via file transfer or streaming media and a private or public network A digital library, just as a traditional library, has to gather content in order to offer it to its users. In case of a traditional library, the situation was clear: The library bought books, textbooks, manuals, and subscriptions for journals and newspapers, and then offered it to its visitors. The visitors of a library were usually requested to pay a certain fee for a certain period of time in order to be able to visit the library and use its materials.
The Digital library represents - a library resource facility in higher education system. Mission Statement: The mission of Digital library will provide and promote access to digital information resources necessary for the achievement of the Digital library in higher education leadership objectives in teaching, learning, research, creativity and community services, to collaborate in the development of effective information, and learning systems . First of all, we have to know about “The Royal Library of Alexandria, or Ancient Library of Alexandria”, in Alexandria, Egypt, was one of the largest and most significant libraries of the ancient world. It dedicated to the Muses, the nine goddesses of the arts. , .
Are libraries too old for the upcoming years, or is it something that is well needed? Libraries help students find peace in themselves through reading about different cultures and reading fantasy novels or horror books. It helps people gain a sort of happiness when nothing else can offer it. It can also offer lots of opportunity, like the staff helping students learn and do homework, new knowledge learned from reading books both fiction and non-fiction, and a place for studies that can help students become better students and people not just better learners. The library is full of educational and life lasting opportunities that would be taken away if they are forgotten.
When it comes to storing printed books or historical artefacts the main concern is with the physical space in a library or museum and preservation techniques. When it comes to digital books, questions of storage are more complex. It is a notable advantage, of course, that e-books do not require buildings and shelves for retaining them, but they are in need of devices and servers that can keep them accessible. It is an obvious distinction that digital books are not material objects but only intangible files with dozens of formats. Thus, the concern is not with a space but with a spesific format and device.
It is because, both of them are involved in digital resources, services and technologies as changing aspects in academic libraries (Choi & Rasmussen, 2009). These both librarians are still new in this era and they need to polish their skills and try to work with current technologies as well as in term of their collections and services. They should be able to maintain their collections in digital format and be able to use all the hardware as well software is required to develop a webpage for their digital and virtual library. According to Dahl, Banerjee & Spalti (2006), they also should have a knowledge to work with the popular technologies, open source, web scripting languages and these tools been use for storing, searching and manipulating information. By exploring those technologies they will have an idea on how to promote their digital or virtual library among the users.
Libraries must be kept open because they reflect diversity, character, and the needs and expectations of our community. Those needs and expectations are often extensive. Libraries are arsenals of books that are full of useful information in the medical field most importantly, and also out of it. For example, many years back technology was not around or as advanced as it is now in modern time. Books, and experimenting were used for creating medical vaccines and medicines.
Libraries are the repositories of humanity’s knowledge. Society creates libraries as institutions to store and make available knowledge, information and to facilitate the enjoyment of literature in all forms. Every library has the major responsibility to provide users with the widest range of information materials relevant to their requirements to enable them solve problems as well as make decisions. Thus, the major pre-occupation of the information professionals is a prerogative to harness all the information resources applying sets of intertwining activities and services to provide value- added information services to users. On close examination, it would be discovered that in the process of accomplishing this seemingly simple task, the information
Library database  is an electronic catalog, often containing information about publishing books, and is searchable. All the books availability and their location are maintained in the library database. If any book is issued to the user or returned to the library, then the database will automatically update information about the number of books available. The system mainly consists of two sections, one is a mobile user unit and another is a library management system. The mobile user unit is a mobile with a network provider facility.