All conversational library basic function focus on collection organization and dissemination of information resource traditionally a library is a place in which book manuscript musical score or other literary and artistic material are kept for use but not for sale in effect it is an institution oriented toward collection and custody where people may make use of the facility whereas a digital library is an assemblage of digital computing stroage and cpmmunication machinery togther with the content and software needed to reproduce emulate and extend the service provide by conventional library in other word a digital library