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Thursday, March 23, 2017

DVD RAM

Device
DVD RAM
Properties
Allows reading and writing at same time, can record many times, works for years ,can store 4.7 GB (1sided) or 9.4 GB(double sided disc)
It contains concentric tracks.
Uses
*since long lasting  so used for archiving data
*Used in DVD recorder and camcorders
Advantages
*Long life ;last  at least 30 years
*can be re-used over 100,000 times
*fast access to stored files
* offer large storage capacity
* Can read data at same time  when it is written
Disadvantages
*Expensive than Recordable CDs and DVDs
* Don’t work in many devices

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