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E-RESOURCES
OVERVIEW
WHAT IS E-RESOURCE?Electronic resources consist of data (information representing numbers, text, graphics, images, maps, moving images, music, sounds, etc.), programs (instructions, etc., that process the data for use), or combinations of data and programs. Electronic resources often include components with characteristics found in multiple classes of materials.
DIFFERENT E-RESOURCES
DIFFERENT TYPES OF E-RESOURCES Research Guides by Subject: Subject guides are web
resources designed by University of Chicago Librarians which provide an overview of resources in a subject area. They include staff contacts, print collections, electronic resources, as well as links to other relevant Web sites. Subject guides are a good place to start when you are beginning research on a specific topic.
Electronic Books and Texts: The Library provides access to a variety of electronic books, as well as the other printed works (such as essays, poems, or historical doocuments). Some of these electronic books and texts are part of large, searchable databases.
Electronic Journals: The Library has an E-Journals Database to help you find online versions of journals.
Library Catalogs: Most libraries now provide access to their catalogs from their web sites. Many others provide information about their holdings into larger databases such as World Cat or the RLG Union Catalog.
Reference Sources: Many dictionaries, almanacs, encyclopedias, and other reference sources are now available online in full-text.
Image Databases (Art, Maps, Medical, etc.): Some databases include graphics or images, such as photos, paintings or maps.
ADVANTAGES OF E-RESOURCE
Huge range of information available >8 billion web pages >20,000 journals
Timely, up-to-date information sources ‘Value added’ functionality (e.g. searching) Additional skills development – ICT skills Large volume of quality, free information
DISADVANTAGES OF E-RESOURCES Technical barriers to use
need computers, network connection, software, etc
Infrastructural problems bandwidth and telecommunications issues unreliable electricity supplies, etc
Skills and training requirements Costs can be high: technology and
content Variable quality of information
WHAT IS DATABASE? A database is an organized collection of data. The
data are typically organized to model relevant aspects of reality in a way that supports processes requiring this information. For example, modeling the availability of rooms in hotels in a way that supports finding a hotel with vacancies.
Database management systems (DBMSs) are specially designed applications that interact with the user, other applications, and the database itself to capture and analyze data. A general-purpose database management system (DBMS) is a software system designed to allow the definition, creation, querying, update, and administration of databases. Well-known DBMSs include
EXAMPLES OF DATABASE MySQL SQLite Microsoft SQL Server SAP Dbase FoxPro IBM DB2 FileMaker Pro
EXAMPLE OF DATABASE
ONLINE DATABASE An online database is a database accessible from a
network, including from the Internet. It differs from a local database, held in an individual
computer or its attached storage, such as a CD. For the system or software designed to Currently, there
are several database products designed specifically as hosted databases delivered as software as a service products. These differ from typical traditional databases such as Oracle, Microsoft SQL Server, Sybase, etc. Some of the differences are:
These online databases are delivered primarily via a web browser
They are often purchased by a monthly subscription They embed common collaboration features such as
sharing, email notifications, etc.
THANK YOU
PRESENTED BY- KAJAL AGGARWAL- 132197 ANCHAL SINGHAL- 132117