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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.
OCLC, Inc., doing business as OCLC, [ 4] is an American nonprofit cooperative organization "that provides shared technology services, original research, and community programs for its membership and the library community at large". [ 2] It was founded in 1967 as the Ohio College Library Center, then became the Online Computer Library Center as ...
Project Gutenberg ( PG) is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks ." [ 2] It was founded in 1971 by American writer Michael S. Hart and is the oldest digital library. [ 3] Most of the items in its collection are the full texts of books or individual stories in ...
Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser or a mobile app. Consumers find a product of interest by visiting the website of the retailer directly or by searching among alternative vendors using a shopping search engine , which ...
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The ICDL is a free online library of digitized children's books in 59 languages [3] from various countries. Designed specifically for use by children ages 3 to 13, the Library is housed by the International Children's Digital Library Foundation. It was originally developed in the College of Information Studies and the Human-Computer Interaction ...
The Card Catalog at the Library of Congress. A library catalog (or library catalogue in British English) is a register of all bibliographic items found in a library or group of libraries, such as a network of libraries at several locations. A catalog for a group of libraries is also called a union catalog.
The Library of Congress Classification ( LCC) is a system of library classification developed by the Library of Congress in the United States, which can be used for shelving books in a library. LCC is mainly used by large research and academic libraries, while most public libraries and small academic libraries used the Dewey Decimal ...