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Online public access catalog. The online public access catalog (OPAC), now frequently synonymous with library catalog, is an online database of materials held by a library or group of libraries. Online catalogs have largely replaced the analog card catalogs previously used in libraries.
The card catalog was a familiar sight to library users for generations, but it has been effectively replaced by the online public access catalog (OPAC). Some still refer to the online catalog as a "card catalog". [2] Some libraries with OPAC access still have card catalogs on site, but these are now strictly a secondary resource and are seldom ...
It was founded in 1967 as the Ohio College Library Center, then became the Online Computer Library Center as it expanded. In 2017, the name was formally changed to OCLC, Inc. [4] OCLC and thousands of its member libraries cooperatively produce and maintain WorldCat, the largest online public access catalog in the world. [5]
Copac. Copac (originally an acronym of Consortium of Online Public Access Catalogues) was a union catalogue which provided free access to the merged online catalogues of many major research libraries and specialist libraries in the United Kingdom and Ireland, plus the British Library, the National Library of Scotland and the National Library of ...
The online public access catalog (OPAC) is a basic module, part of the library's integrated library system. Earlier, the OPAC has been limited to searching physical texts, and sometimes digital copies but has only limited special features.
An Online Public Access Catalog (OPAC) provides the ability log into a library account to renew or request items. Gateway to electronic resources. Libraries may organize the various periodical indexes, electronic reference collections, and other databases they subscribe to. Resources may be organized alphabetically, by subject and by media.
OCLC has collaborated with Wikipedia in several ways. For example, in 2017, OCLC's WorldCat Search API was integrated into the cite tool of Wikipedia's VisualEditor, [2] [3] allowing Wikipedia editors to easily cite sources from WorldCat, which is the largest international online public access catalog (OPAC) in the world. [4]
Online public access catalog From an alternative spelling : This is a redirect from a title with an alternative spelling of the target name. Pages that link to this redirect may be updated to link directly to the target page if that results in an improvement of the text .