CD-ROM - Capacity

The CD-ROM (an abbreviation for "Compact Disc Read-Only Memory") is a non-volatile optical data storage medium using the same physical format as audio CDs, readable by a computer with a CD-ROM drive. A CD-ROM is a flat, metallized plastic disc with digital information encoded on it in a spiral from the center to the outside edge. The CD-ROM Yellow Book standard was established in 1985 by Sony and Philips. Microsoft and Apple Computer were early enthusiasts and promoters of the CD-ROM. John Sculley, CEO of Apple at the time, said as early as 1987 that the CD-ROM would ...

Including:

• CD-ROM - Manufacture
• CD-ROM - Capacity
• CD-ROM - CD-ROM drives
• CD-ROM - Copyright Issues
• CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia - CD-ROM

The standard CD-ROM holds 650 or 700MB of data. The CD-ROM is popular for distribution of software, especially multimedia applications, and large databases. A CD weighs under an ounce. To put the CD-ROM's storage capacity into context, the average novel contains 60,000 words. Assume that average word length is 10 letters - in fact it's considerably less than 10 - and that each letter occupies one byte. A novel therefore might occupy 600,000 bytes. One CD can therefore contain over 1,000 novels. If each novel occupies half an inch of bookshel ...

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CD-ROM, CD-ROM - Manufacture, CD-ROM - Capacity, CD-ROM - CD-ROM drives, CD-ROM - Copyright Issues, CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia II - CD-ROM - Capacity

CD-ROMs are read using CD-ROM drives and written with CD recorders (often referred to as "burners"). CD-ROM drives—now almost-universal on personal computers—may be connected to the computer via an IDE (ATA) interface, a SCSI interface or a proprietary interface, such as the Panasonic CD interface. Most CD-ROM drives can also play audio CDs and Video CDs with the right software. CD-ROMs are writen and read using hills and valleys on the disc that are microscopic. Each hill represents a 1 and each valley represents a 0See also:

CD-ROM, CD-ROM - Manufacture, CD-ROM - Capacity, CD-ROM - CD-ROM drives, CD-ROM - Copyright Issues, CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia II - CD-ROM - CD-ROM drives

CD-ROMs are read using CD-ROM drives and written with CD recorders (often referred to as "burners"). CD-ROM drives—now almost-universal on personal computers—may be connected to the computer via an IDE (ATA) interface, a SCSI interface or a proprietary interface, such as the Panasonic CD interface. Most CD-ROM drives can also play audio CDs and Video CDs with the right software. CD-ROM drives are rated with a speed factor relative to music CDs: 1x or 1-speed which gives a data transfer rate of 150 kilobytes per second in the most ...

See also:

CD-ROM, CD-ROM - Manufacture, CD-ROM - Capacity, CD-ROM - CD-ROM drives, CD-ROM - Copyright Issues, CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia II - CD-ROM - CD-ROM drives

There has been a move by the recording industry to make audio CDs (CDDAs, Red Book CDs) unplayable on computer CD-ROM drives, to prevent copying of the music. This is done by intentionally introducing errors onto the disc that the analogue circuits on most stand-alone audio players can automatically compensate for, but confuse CD-ROM drives. Consumer rights advocates are as of October 2001 pushing to require warning labels on compact discs that do not conform to the official Compact Disc Digital Audio standard (often called the Red Book) to inform consumers of which discs do ...

See also:

CD-ROM, CD-ROM - Manufacture, CD-ROM - Capacity, CD-ROM - CD-ROM drives, CD-ROM - Copyright Issues, CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia II - CD-ROM - Copyright Issues

There are several formats used for CD-ROM data: the Rainbow Books, which include the Green Book, White Book and Yellow Book CD-ROM. ISO 9660 defines the standard file system of a CD-ROM, although it is due to be replaced by ISO 13490. UDF format is used on user-writable CD-R and CD-RW discs that are intended to be extended or overwritten. The bootable CD specification, to make a CD emulate a hard disk or floppy, is called El Torito (appare ...

See also:

CD-ROM, CD-ROM - Manufacture, CD-ROM - Capacity, CD-ROM - CD-ROM drives, CD-ROM - Copyright Issues, CD-ROM - Data Formats

Read more here: » CD-ROM: Encyclopedia II - CD-ROM - Data Formats