History of Compact Disk
At first, as CD invented in the year 1960 by the American physicist James Russell. The compact disk (CD) was introduced by Philips and Sony in 1980 and released in 1982. One day he listened to music and he recognizes that the audio quality is very poor and he tried to improve the record player. But he realized that the poor quality of the music happens due to the recorder due to the contact of the needle with the recorder.
Then he thought this can be avoided by using a light to read the music without physically touching the disk. Then he started working on digital data with optic media and found a way to record media onto a photosensitive platter with tiny bits of light and dark of size 1-micron in diameter. Then he filed a patent application in 1966, and the patent was granted in 1970. After this Sony and Philips licensed with his patents for recording using optic readable media. After all this finally, in 1982 Sony released a CD player name CDP-101. This is how CDs are introduced.
What is a CD (Compact Disk)?
Compact disc is portable storage devices used for storing digital data like recording, storing, and playing video, and audio. Compact Disc can be explained as a disc-like memory device made from plastic material.