Parts of a Computer: Cables
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CABLES
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ATA / PATA / ATAPI/IDE
connectors• Advanced Technology Attachment (ATA) is a standard
interface for connecting storage devices such as hard disks and CD-ROM drives inside personal computers.
• Many synonyms and near-synonyms for ATA exist, including abbreviations such as IDE and ATAPI
• original ATA was retroactively renamed Parallel ATA (PATA).
• Created 1986 by western digital.
• Speed: 16 MB/s originallylater 33,66,100 and 133 MB/s
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THE 40 PINS ATA CABLE
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THE 80 PINS ATA CABLE
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THE 80 PINS ATA CABLE IS ALSO CALLED Ultra DMA IDE/ATA interface
cable
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COLOR CODES ON 80 PINS ATA CABLE
Color coding of the connectors is used to make it easier to determine which connector goes with each device:
• Blue: The blue connector attaches to the host (motherboard or controller).
• Gray: The gray connector is in the middle of the cable, and goes to any slave (device 1) drive if present on the channel.
• Black: The black connector is at the opposite end from the host connector and goes to the master drive (device 0), or a single drive if only one is used.
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SCSI cable
• Widely used for RAID.
• SCSI is based on "SASI", the "Shugart Associates System Interface", introduced by that company in 1979.
• Internal SCSI cables are usually ribbon cables that have multiple 68 pin or 50 pin connectors. External cables are
shielded and only have connectors on the ends.
• Speed: 5 mb/s up to 640 mb/s.
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SCSI cable n’ Card
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SCSI in Action
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SATA• It was designed as a successor to the legacy Advanced
Technology Attachment standard (ATA), and is expected to eventually replace the older technology (retroactively renamed Parallel ATA or PATA)
• Created 2003.• Speed: 1.5 Gbit/s, 3.0 Gbit/s • Style: serial
SCSI Bcurrently offers transfer rates higher than SATA, but is a more complex bus usually resulting in higher manufacturing cost.
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SATA cable and port
SATA portSATA cable
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At the back of Hard drive with SATA pins.
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SATA hard drive