What is the full form of CD-ROM?

Full form of CD-ROM: Here, we are going to learn what does CD-ROM stands for? CD-ROM – which is an abbreviation of "Compact Disc Read-Only Memory" in Computer Acronyms/Abbreviations, etc.
Submitted by Anushree Goswami, on July 19, 2020

CD-ROM: Compact Disc Read-Only Memory

CD-ROM is an abbreviation of "Compact Disc Read-Only Memory". It is a data storage memory in the form of an optical compact disc, which is read by a system, contains an optical drive. The term "ROM" in the CD-ROM signifies the data stored on the compact disc is a type of "read-only" data, which cannot be changed or removed. In the 1983 Yellow Book, the initial data arrangement set of the Compact Disc Read-Only Memory was described by Philips and Sony.

The standard CD data encoding techniques are followed by data stored on CD-ROMs, which is detailed in the stated guidelines of Red Book, formerly classified in case of just audio Compact Disc.

The data encoding techniques comprises:

  • Cross-interleaved Reed–Solomon coding (CIRC).
  • Eight-to-fourteen modulation (EFM).
  • Usage of pits and lands, in case of coding the bits into the objective facet of the Compact disc.

CD-ROM Standard

  • In 1988, the Yellow Book was published, in which the parameters guidelines in case of CD-ROMs are described.
  • In 1989, the standardization of CD-ROM occurred as the ISO/IEC 10149 / ECMA-130 standard.
  • In case of CD-ROM, ISO 9660 describes the standard file system.

Data Capacity of CD-ROM

  • The capacity of CD-ROM is generally conveyed with binary prefixes, in which the space storage used in case of error correction data gets deducted.
  • A normal 120 mm, 800 MB CD-ROM can essentially store about 829 MB of data with error correction, which overall data is 952 MB.

Advantages of CD-ROM

  • The compact disc is simple, which has no trouble in usage.
  • The compact disc is portable.
  • The compact disc is cheaper.
  • The compact disc has an extensive life.

Disadvantages of CD-ROM

  • The compact disc is easy to be smashed and damaged.
  • The compact disc is non-modifiable.
  • The compact disc maintains limited storage of data.

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