When were lp records invented?

Answer Long Playing Records or "LPs" were invented in 1948. They waned in popularity, in the early 1990s due to the introduction of the CD. LPs are made of vinyl and hold up to 60 minutes of music. They a... Read More »

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Who invented LP records?

Peter Carl Goldmark invented the LP, or long playing record, in 1948. The revolution speed was reduced from 78 revolutions per minute, or rpm, to 33-1/3 rpm. Record sizes decreased in two ways. Rec... Read More »

When were 78 rpm records invented?

According to the Yale Library, 78 rpm records were invented in 1898 and were made until about 1950. Depending on the disc size, most 78 rpm records have a duration of three to five minutes per side... Read More »

When were 45 RPM records invented?

RCA Victor released the first 45 RPM record to the general public on March 31, 1949. The 7-inch disc contained "Texarkana Baby" and "Bouquet of Roses" by RCA singer Eddy Arnold. The 45 RPM contin... Read More »

Air Force members are highly encouraged to work through their Records Management hierarchy to get answers to records management questions and concerns In the Air Force the Records Management hierarc?

Action Officer -> Records Custodian -> Air Force Records Officer -> Command or Agency Records Manager -> Base Records Manager -> Functional Area Records Manager -> Chief of Office of Record