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Term of the Day:
Itanium


CD-ROM
caddy
CAV
CD-I (Compact Disc-Interactive)
CD-R drive
CD-ROM player
CD-ROM/XA
CD-RW disk
CLV
compact disc
disk
erasable optical disk
FMD-ROM
mass storage
multimedia
optical disk
Yellow_Book

Pronounced see-dee-rom, abbreviation of Compact Disc-Read-Only Memory. A type of optical disk capable of storing large amounts of data -- up to 1GB, although the most common size is 650MB (megabytes). A single CD-ROM has the storage capacity of 700 floppy disks, enough memory to store about 300,000 text.

CD-ROMs are stamped by the vendor, and once stamped, they cannot be erased and filled with new data. To read a CD, you need a CD-ROM player. All CD-ROMs conform to a standard size and format, so you can load any type of CD-ROM into any CD-ROM player. In addition, CD-ROM players are capable of playing audio CDs, which share the same technology.

CD-ROMs are particularly well-suited to information that requires large storage capacity. This includes color large software applications, graphics, sound, and especially video.

CD-ROM Drives



General Speed
Seek Time
(milliseconds)


Data Transfer Rate
Single-Speed
600
150K per second
2X
320
300K per second
3X
250
450K per second
4X
135-180
600K per second
6X
135-180
900K per second
8X
135-180
1.2 MBps
10X
135-180
1.6 MBps
12X
100-150
1.8 MBps
16X
100-150
2.4 MBps (maximum)
24X
100-150
3.6 Mbps (maximum)
32X
100-150
4.8 Mbps (maximum)


For internet.com pages about CD-ROM, . Also, check out the following links!


More Information

Outstanding Page Optical Technologies Overview
Outlines the optical technologies used by a CD-ROM drive and the various associated CD standards. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide." Updated on Aug 5, 1998

Outstanding Page Educate Online's CD-ROM reviews
This is Educate Online Magazine's reviews of CD-ROM software and books. Updated on Jun 15, 1998

  CD jukeboxes and towers - article
New Media article (June 1997) on the popularity and advantages of using CD towers and jukeboxes for storing data. Updated on Jul 16, 1998

  CD-R and CD-ROM Related Information
Contains information on new CD technologies as well as general CD recording, various charts, tables and definitions, and newsgroups and online resources.

  CD-ROM LAN FAQ
Provides answers to questions on CD-ROM networking solutions and links to related newsgroups, publications, and FTP sites.

  CD-ROM tutorial
Contains many basic answers asked about CD-ROMs. Updated on Aug 5, 1998

  Digital Cafe's CD-ROM page
A technical support page providing links to a FAQ, hardware vendors, and driver downloads. Updated on Jan 21, 1998

  DocuTech Data Systems home page
Provides information on DocuTech's imaging products and the Docu-ROM Service Bureau Network Updated on Sep 20, 1997

  IBM Information Brief on CD-ROM Technology
Provides an overview of how CD-ROMs work. Updated on May 29, 1998

  MicroSynergy home page
Contains information on MicroSynergy multimedia products, CD recordable drives and optical and RAID systems. Also includes links to company, services and support information. Updated on Apr 30, 1998

  PC Guide's CD-ROM reference
Extensive coverage of CD-ROM drives and technology. Describes how the CD-ROM drive works. Covers CD media and the different formats, CD-recordable and CD-rewriteable technology, performance and reliability, and interface and configuration issues.

  SIGCAT's CD home page
The Special Interest Group on CD Applications and Technical resources (SIGCAT) home page includes links to a resource center, bibliography of publications, information on classes, and press releases pertaining to CD-ROM applications. Updated on Sep 22, 1997

  Storage Buyer's Directory
LAN Times site with information on storage hardware products for enterprise-wide backups and everything in between. The directory features CD-ROM drives, removable drives, storage subsystem hardware and tape backup drives from leading vendors.

  The CD Information Center
Contains industry news and recent articles, a collection of FAQs, industry events listings, sponsor news items, bibliographic information, standards and specifications, and section on CD history with several commentaries. Updated on Mar 12, 1998

  Yahoo!'s CD-ROM hardware page
Yahoo!'s directory of CD-ROM hardware manufacturers page. Updated on Aug 4, 1998

  Yahoo!'s CD-ROM magazine page
Yahoo!'s directory of links to CD-ROM magazines. Updated on Aug 2, 1998

  Yahoo!'s CD-ROM software page
Yahoo!'s directory of CD-ROM software publishers. Updated on Aug 4, 1998

  Yahoo!'s CD-ROM titles page
Yahoo!'s directory of CD-ROM products and software titles. Updated on Aug 4, 1998

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