An invention after20th century

Disc Compact(CD)

The compact disc was created by the nethertlander Kees Immink,the Philips,and the japanase Todhitada Doi,the Sony,in 1979.The last year,Sony and Philips,was sold very compact disc,but don´t sold for the economic depresion.Started the new sale the recordings audio and wun a lot of money.

In 1981 the conductor Herbert von Karajan,was sold in the festival of Salzburg and began a big sucess.

In the year 1984,the CDs saved to 700MB.

Now the diameter in CDs is the 12 centimetres.