References https://www.seagate.com/do-more/everything-you-wanted-to-know-about-hard-drives-master-dm/ https://www.computerhope.com/jargon/h/harddriv.htm https://kintronics.com/hom-blu-ray-optical-discs-work/ https://www.googlr.tt/amp/s/arstechnica.com/uncategorized/2006/03/6400- 2/%3Famp%3D1 www.databackuponlinestorage.com/Blu-ray_Optical_Discs https://slideplayer.com/slide/1517232 https://www.computerhope.com/jargon/c/cdrom.htm https://study.com/academy/lesson/whatis-an-optical-drive-definition-types-function.html https://www.techrepublic.com/article/all-about-cd-r-and-cd-rw/ www.ictlounge.com/html/optical_storage_media.htm https://kb.wisc.edu/showroom/page.php?id=2924 http://www.synchrotech.com/support/faq-expresscard.html https://www.techopedia.com/definition/308/expresscard https://www.online-sciences.com/computer/flash-memory-cards-advantages-and-disadvantages/
Storage Devices 