Brief,History,the,Compact,Disc technology A Brief History of the Compact Disc
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A CompactDisc is a digital storage medium using an optical disc. While originallydeveloped for audio recording and playback, later in life it found use asstorage for all kinds of digital data. Sony was the first brand to openlydemonstrate their optical audio disc technology in the late 1970s. In the eighties,compact discs became commercially available, which began the war with audiotape and vinyl. The Compact Disc ultimately emerged the winner of audioformats, only to be replaced themselves by solid state memory storage devices.Standards and FormatsStandardsized Compact Discs are 1.2 mm thick with a diameter of 120mm. The originalstorage capacity of a CD was 680 MB or 74 minutes of audio. Currently 700 MB ofdata or about 80 minutes of audio is what one would typically encounter.However, larger sizes do exist. Also available are smaller Mini CDs which canvary in both size and playback time, but the most common ones are 80 mm indiameter or approximately 3 inches. These hold 24 minutes of audio or 210 MB ofdata.In 1979,Sony and Philips collaborated on new ways to make the CD a more efficientstorage and playback device, further refining technology started almost fiveyears previous in Sonys case. In a sense, it was this team that invented theCD as we know it today as one of the worlds most reliable forms of audioplayback. One of the first developments to come from the coalition was the RedBook, which defined standard specification for the CD format. Among otherdetails, it sets out the specific guidelines for playback length, deviations,error rate, modulation, and so on.Becomingcommercially available in 1982, the first album to be mass produced on compactdisc was Billy Joels 52nd Street, which was released at the same time asSonys CD player CDP-101 in October. In subsequent years, CBS music continuedto honor the anniversary by releasing several albums on Compact Disc every yearon the same day.ReceptionForaudiophiles of the time, the new Compact Disc seemed to be a dream come true.It was highly praised as the superior method of playback by classical musicconnoisseurs who were one of the first groups to really get behind the newtrend. As the 1980s progressed, the price of CD players slowly fell allowingthe format to gain mainstream popularity, especially in the rock and popcategories. By 1989, almost a half billion CDs were manufactured on a yearlybasis.Data and Video on the CDWhile it wasoriginally intended as an audio format, the Compact Disc found use as a datastorage method for computer programs. In June of 1985, the first CD-ROM wascreated for use in computers. A few years of progress later saw the developmentof CD-Recordable (originally called CD-WO) and eventually CD-RW, allowingconsumers to record whatever they wanted onto the discs.In 1987the CD-V (Compact Disc Video) was introduced using laser disc technology on aCD format to create moving pictures. The fatal flaw, however, was that therewas simply not enough room for the necessary video data, and the format quicklyfell into decline, disappearing completely by 1991.Dontconfuse the CD-V with the VCD though. A VCD, or Video Compact Disc, is a moresuccessful video format on CD that was created in 1993. Like audio CDs, a VCDholds either 74 minutes or 80 minutes of video and its quality is roughly thesame as a VHS tape. Most DVD players are capable of playing VCDs but VCDplayers were also manufactured and quite popular in certain parts of the world especially Chinaand some other Asian countries.Timecontinues to march on, however, and the Compact Disc is slowly getting left inthe dust. Since the advent of solid state MP3 players, large label CD saleshave consistently dropped. The CD still has a place in the computer world,however as an inexpensive way to store data. Though the road has been long, thestory of the Compact Disc isnt over yet.
Brief,History,the,Compact,Disc