Monday, August 12, 2019

CD (Compact Disc) / Introduction to computers

CD: (Compact disc)
Compact disk (CD) is portable disk having data storage capacity between 650-700 MB. It can hold large amount of information such as music, full-motion videos, and text etc. CDs can be either  read only or read write type.
CD can store the large amount of data compare to floppy disk.
CD R; CD recordable; we are able to write until it's capacity is full.
CD ROM: read only memory. We can not write data in it.
CD RW:CD Rewritable, we are name as E or F drive.

Alternatively referred to as a floppy or fpoppy disk, a floppy diskette was originally created in 1967 by IBM to help have an alternative to buying hard drives that were extremely expensive at the time and were not through of as something to be used with a standard computer.  Below is a brief history of each of three major floppy diskettes Today, these disks have been replaced by writable discs and USB thumb drives. 

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