Answer:
Original Question [asked on here]: What is an outline catalogue?
Revised Question [copy and pasted on G oo gle thought you meant]: What is an online catalogue?
Similar Question: What is an online library catalog?
Simple Answer: A database of library materials
More In-Depth Answer & History: An online library catalog is an electronic bibliographic database that describes the books, videotapes, periodicals, etc. carried by a particular library. The online library catalog evolved from a printed source, the library card catalog. Before the advent of online catalogs, library catalogs were pieces of furniture that contained numerous small drawers. In these drawers were contained the records of particular items in the library.
Explanation:
Source: https://www.usg.edu/galileo/skills/unit04/primer04_04.phtml
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