Define retrospective conversion. Discuss its need and historical background.

Retrospective conversion, often referred to as RECON, involves converting existing bibliographic records from manual or card catalog systems into machine-readable formats for integration into an automated library system. This process typically involves transcribing or digitizing the data from printed or handwritten records, such as catalog cards, into digital formats compliant with standardized bibliographic frameworks, such as MARC (Machine-Readable Cataloging) records. Retrospective conversion plays a critical role in modernizing library operations, making catalog information more accessible, and facilitating interoperability between various library networks and databases.

The need for retrospective conversion stems from the evolution of library services and the increasing reliance on digital technology for information access and management. Libraries, traditionally custodians of vast amounts of printed material, face the challenge of maintaining ___ _______ __________ ____ _____ ____ ______.
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