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Optical Storage Mediums
Beginning of paper
The most common way of storing data in a computer is magnetic. We have hard
drives and floppy disks (soon making way to the CD-ROM), both of which can store
some amount of data. In a disk drive, a read/write head (usually a coil of
wire) passes over a spinning disk, generating an electrical current, which
defines a bit as either a 1 or .... Middle of paper
.... touch the disk surface, thereby not creating
friction, which leads to wear, so the life of an average optical disk is far
longer than that of a magnetic medium. Also, it is impossible to ÒcrashÓ an
optical disk (in the same sense as crashing a hard drive), since there is a
protective layer covering the data areas, and that the ÒheadÓ of the drive can
be quite far away from the disk surface (a few millimeters compared to
micrometers for a har ....
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Number of words: 997
Number of pages: 4 (approx. 250 words per double-spaced page)
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