n:\optical storage

Rickelle Groover

First forms of optical storage

CDs

DVDs

Blue-Ray

The Future

•Egyptian Hieroglyphics

• Invented 5,000 years ago.

•Photographs

• Developed 200 years ago.

•Storage of pictures today

• CDs and DVDs

•First invented by Davis Gregg in 1958

•1985 mass production of CD-ROMs for electronic encyclopedias in schools

•WORM-Wright Once Read Many

•Erasable

• Definitions

•CD-Rom- Compact disc Read Only Memory is defined as a disc that already comes with data encoded on to it.

•The WORM or Write Once-Read Many is a disc you can write data onto but only once then the disc acts as a CD-ROM

•An erasable is a disc that can be erased and loaded with new data just like magnetic discs

•Hit the consumer market in 1996

•Struck the attention of movie producers

•Burnt in information with a red laser

• Manufacturers

• DVDs- manufactured by ten different companies including: Hitachi, JVC, Phillips, Sony, and Toshiba just to name a few known companies

•Blue-ray disc was developed by the following companies: Sony, Matsushita, Pioneer, Phillips, Thompson, LG Electronics, Hitachi, Sharp and Samsung

• The previous slide showed that there is a tremendous difference in picture quality between the normal DVD picture and the Blue ray picture.

• This is all due to the new cutting technology that is available.

• Technology is only going to get bigger and better, in the future I believe that picture quality can only get better.

•Produced because of HDTV

•Burnt in information by use of blue-violet laser.

•Can store 2 hours of finer detailed high quality information

• The Blue ray picture in the previous slid shows how that the use of the new violet ray can cut more precisely to insure that the image that is being viewed is sharp and not hazy.

• Ultra violet rays

• The discs will store more information

•3D DVDs

• Better quality picture then the Blue-ray

http://www.docstoc.com/docs/21158050/The-History-of-Optical-Storage-Media-and-its-Future

http://search-midmarket.techtarget.com

www.usbyte.com/common/optical_data_storage_systems.html

www.webopedia.com

www.wikipeda.org