Both tape and CDs access data using sequential access.
On a DVD, a Land represents a binary 1 and a Pit represents a binary 0.
Tape drives are routinely installed as SCSI devices.
PATA DVD drives must be installed on a seperate interface than hard drives.
SATA tape drives can be installed on the same interface as hard drives.
SD cards are a type of Solid State storage.
Multiple layers and a shorter wavelength laser allow for higher density and therefore greater storage over CDs.
CD-Rs are rewritable media.
The most obvious advantage of tape drives is it's ability to store and read data sequentially.
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