CD computer abbreviation usually means ?

>>>>>>>>>>>>>>>>>>>>>>>  a) Compact Disc 

The mean of CD : Compact Disc

a) Compact Disc>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

a) Compact Disc 

Compact disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).

Compact disc......................

CD Stands for Compact Disc.................................................