In
computing, an optical
disc drive
(ODD)
is a disk drive that uses laser light or electromagnetic waves within
or near the visible light spectrum as part of the process of reading
or writing data to or from optical discs. Some drives can only read
from discs, but recent drives are commonly both readers and
recorders, also called burners or writers. Compact discs, DVDs, and
Blu-ray discs are common types of optical media which can be read and
recorded by such drives. Optical drive is the generic name; drives
are usually described as "CD" "DVD", or
"Blu-ray", followed by "drive", "writer",
etc.
Optical
disk drives are an integral part of stand-alone consumer appliances
such as CD players, DVD players and DVD recorders. They are also very
commonly used in computers to read software and consumer media
distributed on disc, and to record discs for archival and data
exchange purposes. Floppy disk drives, with capacity of 1.44 MB,
have been made obsolete: optical media are cheap and have vastly
higher capacity to handle the large files used since the days of
floppy discs, and the vast majority of computers and much consumer
entertainment hardware have optical writers. USB flash drives,
high-capacity, small, and inexpensive, are suitable where read/write
capability is required.
0 comments:
Post a Comment