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A)what are the advantages and dissadvantages of flash drive?

b)differentite between dvd and blue ray tube.
plz do it fast.....need it urgently
it is blue ray disc
Thank u
plz answer the other ques too


Advantages of flash drive:
1. Portable.
2. Easy to carry.
3. More datas can be stored.

1. Cost is more compared to CD drive
2. It will not be applicable for old computers.

Differences between Blue ray and DVD:
-Blue ray is more costly compared to DVD
-More data can be stored in blue ray compared to DVD

2 4 2

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Flash drive:
  1. It is a permanent memory
   2. It is an external secondary storage device.
  3. It is a plug and play type device.  There is no need to install.
  4. It has a very large memory capacity.
  5. It has very fast (small) access time to retrieve or to store data.
 Blue ray disc
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