Every year on March 2 own Birthday celebrates CD, because it was on this day in 1983 in Great Britain that Polygram, Philips and Sony showed the world the first compact disc with a player. Beethoven’s Ninth Symphony was played as an example of the disc’s operation. The first CDs had a diameter of 12 centimeters and could only play audio.

Before the invention of the disk, mankind first used the phonograph, then the gramophone, gramophone and tape recorder, information was contained on magnetic cassettes and records. Now we mostly use flash memory, but the creation of the compact disc gave a strong impetus to the development of technology in general.