COMPACT DISC REWRITABLE

  

Copyright © Philip M. Parker, INSEAD. Terms of Use.

COMPACT DISC REWRITABLE

Specialty Definition: COMPACT DISC REWRITABLE

DomainDefinition

Computing

Compact Disc Rewritable (CD-RW) A rewritable version of CD-ROM. A CD-RW drive can write about 650 megabytes of data to CD-RW media an unlimited number of times. Most CD-RW drives can also write once to CD-R media. CD-RW media cannot be read by CD-ROM drives built prior to 1997 due to the reduced reflectivity (15% compared to 70%) of CD-RW media. CD-RW drives and media are currently (1999) more expensive than CD-R drives and media. CD-R is sometimes considered a better technology for archival purposes as the data cannot be accidentally modified or tampered with, and encourages better archival practices. Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-WR discs have a phase-change recording layer and an additional silver (aluminium) reflecting layer. A laser beam can melt crystals in the recording layer into a non-crystalline amorphous phase or anneal them slowly at a lower temperature back to the crystalline state. The different reflectance of the areas make them appear as the 'pits' and 'lands' of a standard CD. Phillips: New Technologies (http://www-us.sv.philips.com/newtech/cdrewritable.html). See also CD-R and DVD-RAM. (1999-08-01). Source: The Free On-line Dictionary of Computing.

Source: compiled by the editor from various references; see credits.

Top     


Crosswords: COMPACT DISC REWRITABLE

Specialty definitions using "COMPACT DISC REWRITABLE": CD-Read-Write, CD-Rewritable, CDRW, CD-RW, Compact Disc Read-Write. (references)

Source: compiled by the editor from various references; see credits.

Top     

Frequency of Internet Keywords: COMPACT DISC REWRITABLE

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day

compact disc rewritable

6
Source: compiled by the editor from various references; see credits.

Top     

Alternative Orthography: COMPACT DISC REWRITABLE


Hexadecimal (or equivalents, 770AD-1900s) (references)

43 4F 4D 50 41 43 54      44 49 53 43      52 45 57 52 49 54 41 42 4C 45

Leonardo da Vinci (1452-1519; backwards) (references)

        

Binary Code (1918-1938, probably earlier) (references)

01000011 01001111 01001101 01010000 01000001 01000011 01010100 00100000 01000100 01001001 01010011 01000011 00100000 01010010 01000101 01010111 01010010 01001001 01010100 01000001 01000010 01001100 01000101

HTML Code (1990) (references)

&#67 &#79 &#77 &#80 &#65 &#67 &#84 &#32 &#68 &#73 &#83 &#67 &#32 &#82 &#69 &#87 &#82 &#73 &#84 &#65 &#66 &#76 &#69

ISO 10646 (1991-1993) (references)

0043 004F 004D 0050 0041 0043 0054      0044 0049 0053 0043      0052 0045 0057 0052 0049 0054 0041 0042 004C 0045

Encryption (beginner's substitution cypher): (references)

37494750353754238435337252395752435435364639

Top     



INDEX

1. Crosswords
2. Expressions: Internet
3. Orthography
4. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.