.
Use magnetic charges to represent data
Use laser beam to represent 1s and 0s
Use electronics to read and write data
All of the above
Floppy disk, CD, DVD
CD, HD DVD, Pen Drive
Blue Ray, CD-RW, CD-R
Blue Ray, Hard disk, magnetic tape
Label layer
Magnetic layer
Reflected layer
None of the above
Represents the data stored
Indicates damage
Represents important data
Indicates data to be erased
Bumpy area, representing a binary digit '0' on reflective layer
Non-reflective surface, representing a binary digit '1' on reflective layer
Reflective surface, representing a binary digit '1' on reflective layer
Burnt surface, where the laser is not reflected
Using a weak laser beam to burn patterns in the surface
Using a powerful laser beam to burn patterns in the surface
Using non-magnetic charges
None of the above
Stores less data than a CD-RW
Stores only videos
's capacity is the same as a DVD's capacity
Stores more data than other optical disks
36 CDs
46 CDs
2 DVD
2 CD-Rs
High quality and low capacity
High quality and large capacity
High quality and slow access
Using blue violet laser and storing low amount of data