Rickelle Groover

Overview First forms of optical storage

CDs

DVDs

Blue-Ray

The Future

First forms of optical

recording•Egyptian Hieroglyphics

• Invented 5,000 years ago.

•Photographs • Developed 200 years

ago.

•Storage of pictures today• CDs and DVDs

CD’s•First invented by Davis Gregg in 1958

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

•WORM-Wright Once Read Many

•Erasable

DVD’s•Hit the consumer market in 1996

•Struck the attention of movie producers

•Burnt in information with a red laser

Blue-Ray•Produced because of HDTV

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

•Can store 2 hours of finer detailed high quality information

Future expectations

• Ultra violet rays• The discs will store more

information

•3D DVDs• Better quality picture

then the Blue-ray