Which of the following devices have a limitation that we can only information to it but cannot erase it--
Which of the following devices have a limitation that we can only information to it but cannot erase it--
The correct option is D CDROM
CDROM devices have a limitation that we can only
information to it but cannot erase it.
A CD-ROM is a pre-pressed optical compact disc
which contains data. The name is an acronym which is short for "Compact
Disc Read-Only Memory". Computers can read CD-ROMs, but cannot write to CD-ROMs,
which are not writable or erasable.
The CD-ROM format was developed by Japanese company
Denon in 1982. It was an extension of Compact Disc Digital Audio, and adapted
the format to hold any form of digital data, with a storage capacity of 553
MiB. CD-ROM was then introduced by Denon and Sony at a Japanese computer show
in 1984.The Yellow Book is the technical standard that defines the format of
CD-ROMs.
Data is stored on the disc as a series of
microscopic indentations. A laser is shone onto the reflective surface of the
disc to read the pattern of pits and lands. Because the depth of the pits is
approximately one-quarter to one-sixth of the wavelength of the laser light
used to read the disc, the reflected beam's phase is shifted in relation to the
incoming beam, causing destructive interference and reducing the reflected
beam's intensity. This is converted into binary data.
CDROM devices have a limitation that we can only information to it but cannot erase it.
A CD-ROM is a pre-pressed optical compact disc which contains data. The name is an acronym which is short for "Compact Disc Read-Only Memory". Computers can read CD-ROMs, but cannot write to CD-ROMs, which are not writable or erasable.
The CD-ROM format was developed by Japanese company Denon in 1982. It was an extension of Compact Disc Digital Audio, and adapted the format to hold any form of digital data, with a storage capacity of 553 MiB. CD-ROM was then introduced by Denon and Sony at a Japanese computer show in 1984.The Yellow Book is the technical standard that defines the format of CD-ROMs.
Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands. Because the depth of the pits is approximately one-quarter to one-sixth of the wavelength of the laser light used to read the disc, the reflected beam's phase is shifted in relation to the incoming beam, causing destructive interference and reducing the reflected beam's intensity. This is converted into binary data.
