CD-ROM

Pre-pressed compact disc containing computer data
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alias
Compact Disc Read-only memory
Compact Disc Read-Only Memory
CD
media
Commons category
CD-ROM
Wikimedia Commons URL
time of discovery or invention
1982
Wikipedia creation date
10/19/2001
Wikipedia incoming links count
Wikipedia opening text
A CD-ROM (/ˌsiːdiːˈrɒm/, compact disc read-only memory) is a pre-pressed optical compact disc that contains data. Computers can read—but not write to or erase—CD-ROMs, i.e. it is a type of read-only memory. During the 1990s, CD-ROMs were popularly used to distribute software and data for computers and fourth generation video game consoles. Some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer (such as ISO 9660 format PC CD-ROMs). 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. One of a set of color-bound books that contain the technical specifications for all CD formats, the Yellow Book, standardized by Sony and Philips in 1983, specifies a format for discs with a maximum capacity of 650 MiB.
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Quad speed CD-ROM
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Compact Disk-Read Only Memory
Yellow Book (CD-ROM standards)
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ISO/IEC 10149
Compact disc read-only memory
CD-ROM XA Mode 2 Form 1
CD-ROM XA Mode 2 Form 2
CD-ROM Mode 1
CD-ROM Mode 2
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