1. Group 4
Optical Discs

2. What is an Optical Discs?
Type of storage media that consists of flat, round, portable disc made of metal, plastic and lacquer that is written and read by a laser.

3. Optical Disc Purposes
Storage Media:
Photos
Movies
Music
Data

4. History Invented: First Optical Disc 1958
1961 and 1969-David Paul Gregg
California electronic company
First Optical Disc
Music
Computer software

5. Types of Optical Disc CD-ROM CD-R CD-RW DVD-ROM Ect…..
Compact disc read only memory
CD-R
Compact disc recordable
CD-RW
Compact Disc Rewritable
DVD-ROM
Digital Video Disc read only memory
Ect…..

6. Cares of Optical Discs DO NOT: DO: Eat, Smoke, Drink
Touch underside of the disc
Stack disc
Sunlight and heat
DO:
Hold disc by the edges
Store disc in jewel box

7. Advantages
Mass storage capacity
Low cost
Portable
Non-volatile

8. Disadvantages Not enough space Duplications Losing data CAN NOT:
Rewrite
Rerecord

9. Prices Pohnpei: State: 50% will Raise…. Movie Land-$1.00 or less

10. ANY QUESTIONS