What is LP record?
{{unreferenced|date=December 2011}} {{Infobox media | title = | name = Long-play record | logo = | image = [[File:12in-Vinyl-LP-Record-Angle.jpg|220px|Most LPs were pressed in black vinyl with a paper label in the center of each side. However, colored and picture discs were also made]] | caption = A 12-inch LP vinyl record | type = Audio playback | encoding = Analog grooves | capacity = Typical 22-26 minutes per side;<br>2 sides | read = Stylus | write = | standard = | owner = | use = Audio storage | dimensions = 12 in (30 cm); 10 in (25 cm) | weight = 90-200 grams | extended from = 1948 | extended to = }} An '''LP record''' (or '''long-play record''') is a type of [[gramophone record]]. It is a 33⅓ [[Revolutions per minute|rpm]] [[Polyvinyl chloride|vinyl]] disc with little lines called grooves that go around the center. It is generally either 10- or 12-[[inch]]es in diameter. They are played by a [[turntable]]. A turntable spins the record while a lever with a small [[needle]] on the bottom. The needle goes in between the little grooves. When this happens, [[music]] is played. The LP record was introduced by [[Colombia Records]] in 1948. It then became the new way the [[music industry]] released [[Sound recording|recordings]]. In the 1960s, [[Audio cassette|cassettes]] were introduced. This was a cheaper way to record music and not hear the [[noise]] that came from the LP record. However, the LP record continued to be more popular until the 1970s when the [[compact disc]] was introduced. The long-playing record is an [[analog signal|analog]] recording format. The [[digital signal|digital]] recording of sound was only made practical by the technical advances in [[microprocessors]] and [[computing]] which occurred in the 1970s and 1980s. LP's sound quality, it contains more [[distortion]] than many other modern music formats. [[Category:Audio disc]] {{music-stub}}