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objectives of resource sharing the objectives implied in resource sharing activity are very idealistic in nature they are mainly aimed at
introduction to resource sharing networkthe term network always has a wide range of meanings in everyday life and this situation is further
library networks in usa and uk the united states has definitely taken a lead in library networking among the prominent agencies in this regard
the range of network services the range of services provided by many resource sharing networks include storage and retrieval of data such as
development of library networkingthere has not been an agreed set of definitions as to what the term network means in the information sense the
types of networksin this section let us try to discuss the types of computer networks as they have evolved from a technical point of view in this
information networks information networks in the broadest sense can be any formalised system of information exchange but in modern information
communication networksa telecommunications network is a system consisting of communicating devices such as terminals an interconnecting media such
network definition whenever more than two units eg persons organisations or computer terminals are connected and share some attribute a network
library and information networkduring the last decade the importance of computer networks and telecommunications has grown tremendously computers
introduction to information technologytechnology has been defined as systematic knowledge and action usually of industrial processes but
information system in managementan attempt has been made in this unit to explain to you the concept of a system particularly computer-based
system maintenance operationssystem maintenance is concerned with keeping the hardware and software working this involves the following
day-to-day management of information systems it must be emphasised here that a system once implemented requires day-to-day management to ensure
stages in system developmentinformation professionals are mostly concerned with the first situation in this context the emphasis is on the systems
use of system methodologyhowever the systems methodology can be used as an aid in the choice of a commercially available i11 system as an aid
steps in system analysis the following are the steps involved in systems analysis define the system definition of the system including its
methodology an information systems methodology is a methodical approach to information systems planning analysis and design without planning
retrieval evaluation measures objective retrieval evaluation measures have been used from the beginning to assess the retrieval system
ir system evaluation an attempt has been made to explain to you the concept of an ir system and its important components as well as functions
software the software in an ir system enables the following operations entry of bibliographic data including index terms and the generation of
databasein any computer-based ir system the database is on a machine readable media such as magnetic tapes or magnetic discs the database could be
interactive systems with the development of magnetic discs the capability to access data in a random fashion rather than in the sequential
batch processed ir system by batch processed ir system we understand a system that processes several queries information requests in a batch
components of an irs lancaster 1979 considers that an information retrieval system irs comprises the following components i the document