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The First CD Invented

The Invention of the Compact Disk

cds

James Russell invented the compact disc in 1965. James Russell was granted a total of 22 patents for various elements of his compact disc system. However, the compact disk did not become popular until it was mass manufactured by Philips in 1980. 

           The first working prototype was produced in 1979.

At the time of the technology's introduction it had more capacity than computer hard drives common at the time. The reverse is now true, with hard drives far exceeding the capacity of CDs.

In 1979, Philips and Sony got together to manufacture the compact disc.

The team leaders of this project were Kees Immink and Toshitada Doi. Philps handled the manufacturing process along with the Eight-to-Fourteen Modulation (EFM), while Sony too care of the error connection method, better known as CIRC. However, Philips claims that this invention was not a one man's job but a collective contribution by members of both the companies who worked together as a team.

Audio CDs and audio CD players have been commercially available since October 1982.

           Mass adoption didn't happen immediately -- CDs wouldn't overtake cassette tapes until the late 1980s. The first album to sell 1 million copies in the CD format and outsell its vinyl version was Dire Straits' "Brothers in Arms," released in 1985.

This disc was taken over by nearly all markets across the globe, especially the Europe and the United States consumer market. The first successful CD to be launched was Brothers in Arms in 1985.A compact disc (CD) is a popular form of digital storage media used for computer files, pictures, and music. The plastic platter is read and written to by a laser in a CD drive. It comes in several varieties including CD-ROM, CD-R, and CD-RW. 

As with most new technologies, one reason for the slow spread of CDs was their steep price tags. The Sony CDP-101 player sold for the equivalent of $730 when it first hit Japanese shelves in 1982. Accounting for inflation, that's about $1,750 today. The audio CDs themselves were $15, which is $35 in 2012 dollars.

Standard CDs have a diameter of 120 millimeters (4.7 in) and can hold up to 80 minutes of uncompressed audio or 700 MB (actually about 703 MB or 737 MB) of data. The Mini CD has various diameters ranging from 60 to 80 millimeters (2.4 to 3.1 in); they are sometimes used for CD singles, storing up to 24 minutes of audio or delivering device drivers.

Picture Of James Russel

James Russel inventor

 

Comments   

 
+1 # ashy 2013-03-04 05:33
really informative!
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0 # ashy 2013-03-04 06:19
really good
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+1 # alex hensel 2013-04-30 16:43
:-) this is helping me on a projct im so happy that this website hold the truth about russells deal with philups
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