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New page: ''For other uses of this acronym, see also: Resale Price Maintenance'' '''Revolutions per minute''', usually abbreviated '''rpm''', refers to the speed at which record albums are play...
''For other uses of this acronym, see also: [[Resale Price Maintenance]]''
'''Revolutions per minute''', usually abbreviated '''rpm''', refers to the speed at which record albums are played.
The four standard speeds are 16, 33-1/3, 45, and 78 rpm. 16 rpm was mainly used in recordings of [[book]]s made for the [[blind]], and otherwise not much used. 78 rpm was the standard speed for records made before and during [[World War II]]. Immediately following WWII, the 78 rpm standard was discontinued and replaced by two new speeds, 33-1/3 rpm and 45 rpm. 33-1/3 rpm records were used for albums, usually 12 inches in [[diameter]], containing multiple songs, while 45 rpm was used for singles, usually 7 inches in diameter, containing one song on each side. Despite its discontinuation, 78 rpm continued to be available as a selection on turntables well into the 1960s and 1970s so people who had them could continue to play them.
[[Compact disc]]s, and more recently [[MP3]] and other digital files have largely replaced most of the market for vinyl records, but a small market in both 33-1/3 and 45 rpm records continues to exist.
[[Category:Media]]
'''Revolutions per minute''', usually abbreviated '''rpm''', refers to the speed at which record albums are played.
The four standard speeds are 16, 33-1/3, 45, and 78 rpm. 16 rpm was mainly used in recordings of [[book]]s made for the [[blind]], and otherwise not much used. 78 rpm was the standard speed for records made before and during [[World War II]]. Immediately following WWII, the 78 rpm standard was discontinued and replaced by two new speeds, 33-1/3 rpm and 45 rpm. 33-1/3 rpm records were used for albums, usually 12 inches in [[diameter]], containing multiple songs, while 45 rpm was used for singles, usually 7 inches in diameter, containing one song on each side. Despite its discontinuation, 78 rpm continued to be available as a selection on turntables well into the 1960s and 1970s so people who had them could continue to play them.
[[Compact disc]]s, and more recently [[MP3]] and other digital files have largely replaced most of the market for vinyl records, but a small market in both 33-1/3 and 45 rpm records continues to exist.
[[Category:Media]]