long-playing record (LP)

What is long-playing record (LP)?

long-playing record (LP) meaning in Information Science terminology / glossary / dictionary is:

A sound recording medium, introduced by Columbia Records in 1948, in which music and/or spoken words are recorded in a continuous spiral microgroove in the surface of a thin, flat 12-inch wide vinyl disk, which can be played back at 33 1/3 rpm using a device called a record player equipped with a stylus, cartridge, and speakers to amplify the sound (see this example). LPs have a playing time of 20-25 minutes per side. Although they have been superseded, first by audiocassettes and more recently by audio compact discs, they are purchased by collectors and retained by libraries for archival purposes (see the Yahoo! list of vintage vinyl sellers). See also: monaural, quadraphonic, and stereophonic.


reference: ABC-CLIO