What is CDs with portable and store
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A compact disc(CD) is a portable storage medium that can be used to record, store and play back audio, video and other data in digital form.
Explanation:
A standard compact disc has a capacity of 80 minutes of audio, or 650 megabytes (MB) to 700 MB of data.
A CD works by focusing a 780 nanometer wavelength semiconductor laser onto a single track of the disc. As the disc rotates, the laser beam measures differences in the way light is reflected off the polycarbonate layer on the bottom of the disc, converting it to sound.
CDs are fragile and prone to scratches; they can be repaired, but disc readability may be affected.
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