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information resources and selection principle the main objective of a library can be stated as to provide for the information needs of a given
institutional characteristics an approach to an understanding of the fields of interest of individuals to be served and of the organisation as
components of sdi system to be operational the sdi system must have the following components built into it i users represented by
definition of sdi hp luhn in one of this papers published in 1961 defined sdi service as that service within an organisation which concerns
computerised information services having understood the basic aspects of information retrieval let us try to understand the nature of
retrieval capabilities the third aspect of importance in any information storage and retrieval system relates to its retrieval capabilities
storage the second aspect of information retrieval is storage information retrieval systems may use the computer itself to store both the
indexingindexing is the process of allocating index terms or keys to a record or document represented in an information retrieval system
information retrieval in the present day context information retrieval systems have become synonymous with computers although paper-based
research and developmentall intellectual activities consciously pursued and systematically completed generate useful information research also
categorisation of information services in computer environment modern libraries and information centres provide a variety of documentation
knowledgethe dictionary definition of knowledge is organised body of information or the comprehension and understanding consequent on having
computerised information systemsthe main purpose of information services be they libraries corporate records global information networks or
categories of information in social sciencesit would be useful particularly in social sciences to group information into three categories bull
usage in the context of library and information servicesin library and information science there is however no need for making such distinction
data and informationthe term data plural form of datum refers to an individual fact statistic or a piece of information or a group or a body of
information and other related concepts - their meaning and characteristicsyou may often hear or read in newspapers and other popular magazines
internet and its capabilities and servicesin this unit an attempt has been made to expose you to the concept of the internet its capabilities and
intranets in this section we shall try to know what intranets are and how they are beneficial in simple terms an intranet is an internal
concept and need for informationwe shall look at the meaning of information as also the meaning of other related words such as data facts
uses of internet access in libraries users of internet access in libraries and a web site may be in a position to offer some of the under
evaluating internet resources the use of the internet for conducting business whether it is providing library services or any other transaction
search enginessearch engines are mechanisms which aid users to search the entire internet for relevant information they are based on allowing
subject directories subject directories also known as subject guides allow people to browse information by subject they are hierarchically
the world wide web www or w3 the www is the multimedia part of the internet displaying a hyper text type of structure and search facilities it