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ATA/ATAPI to SCSI protocol converter added on. The SCSI commands and responses are embedded in "packets" (hence "ATA Packet
Interface") for transmission on the ATA cable. This interfaces ATA with any device class for which a SCSI command set has been defined. ATAPI devices are also "speaking ATA" because the ATA physical interface and protocol are still being used to send the packets.
779:(SFF) introduced ATAPI to be used for a variety of other devices that require functions beyond those necessary for hard disks. For example, any removable media device needs a "media eject" command, and a way for the host to determine whether the media is present, and these were not provided in the ATA protocol.
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The Small Form Factor committee approached this problem by defining ATAPI as part of the fourth generation of ATA. ATAPI carries SCSI commands through ATA, so ATAPI devices are "speaking SCSI" other than at the electrical interface. In fact, some early ATAPI devices were simply SCSI devices with an
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The SCSI commands and responses used by each class of ATAPI device (CD-ROM, tape, etc.) are described in other documents or specifications specific to those device classes and are not within ATA/ATAPI or the
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standards so that a greater variety of devices can be connected to a computer than with the ATA command set alone. It carries
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committee's purview. One commonly used set is defined in the
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AT Attachment with Packet
Interface Extension (ATA/ATAPI-4)
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AT Attachment with Packet
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Protocol that carries SCSI commands over
Parallel ATA
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864:: CS1 maint: numeric names: authors list (
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681:High-definition optical disc format war
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883:Necasek, Michal (24 November 2021).
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728:) is a protocol used with the
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168:Recording technologies
158:Optical disc authoring
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43:improve this article
759:drives such as the
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41:Please help
36:verification
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894:25 November
889:OS/2 Museum
749:tape drives
475:LaserDisc (
907:Categories
835:References
734:Serial ATA
732:(IDE) and
631:Rock Ridge
600:Mount Fuji
456:MiniDisc (
423:HD DVD-RAM
353:Blu-ray 3D
69:newspapers
860:cite book
761:Zip drive
656:ISO 13490
637:El Torito
576:Standards
419:HD DVD-RW
325:DVD-Video
258:CD-ROM XA
822:See also
747:drives,
670:See also
616:ISO 9660
563:DataPlay
415:HD DVD-R
301:DVD+R DS
297:DVD-R DS
293:DVD+R DL
289:DVD-R DL
234:Photo CD
771:History
745:DVD-ROM
337:MiniDVD
333:EcoDisc
313:DVD-RAM
270:Mini CD
254:CD-Text
142:General
83:scholar
58:"ATAPI"
757:floppy
633:/ SUSP
621:Joliet
486:LV-ROM
482:LD-ROM
443:GD-ROM
410:HD DVD
368:M-DISC
309:DVD+RW
305:DVD-RW
266:MIL-CD
214:CD-ROM
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56:
722:ATAPI
626:Romeo
585:ATAPI
469:Hi-MD
436:VCDHD
321:DVD-A
317:DVD-D
285:DVD+R
281:DVD-R
222:CD-RW
210:CD-DA
90:JSTOR
76:books
923:SCSI
896:2021
866:link
786:The
763:and
738:SCSI
550:(AD)
262:CD-i
250:CD+G
246:SVCD
230:SACD
218:CD-R
62:news
805:MMC
801:T13
650:UDF
589:MMC
582:SFF
329:HVD
276:DVD
248:),
242:VCD
238:CDV
232:),
45:by
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