REFERENCIA BIBLIOGRAFICA:

https://www.youtube.com/watch?v=Vv4EqePYt9I
http://www.definicionabc.com/tecnologia/cd-rom-2.php
https://docs.oracle.com/cd/E19957-01/806-0321-11/z400017f8e3f4/index.html
http://www.partesdeunacomputadora.net/sin-categoria/para-que-sirven-los-cd