SCSI & EIDE hard desk

what is the deference between SCSI hard desk and EIDE hard desk ?
freddie2Asked:
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LucamaxConnect With a Mentor Commented:
Basically they are two different computer interfaces.
EIDE or IDE are usually reserved to hard disks, and EIDE controller is integrated in every pc motherboard.
SCSI  (Small Computer System Interface i guess)devices can be hard drives but also scanners, backup devices, digital cameras and so on.

The main difference is that SCSI no not affect much the CPU of the pc to make his job as EIDE does.  
Some years ago when Cpu power was far less than today , SCSI was the only way to get high performances in data transfer rate.
So SCSI was and is the preferred interface in professional systems.
Since EIDE have make progress in the last years with new protocols like UDMA ATA 33 and ATA66, the differences in performance between the two systems for hard disk are similar in consumers systems.
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freddie2Author Commented:
thank you Lucamax's
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