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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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