Which hdd what?
Answer:
They are adjectives just different specifications when dealing near hard drive see and connectivity to your motherboard.
All (IDE,SATA, EIDE..etc) are related to the standard Advanced Technology Attachment (ATA) called IDE sometimes also.
for example you probably enjoy a system with an IDE connector on the motherboard to unyielding drive (looks long)
where newer model boards support SATA serial ata - which is a much smaller connector from motherboard to tricky drive.
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