NeedAcpu said:SATA and SATA II is just the name of an orginization. SATA and SATA II are basically the same thing it's just said that hard drives with a 3gb/s transfer rate are SATA II although this is not the case. Read more about SATA II here http://www.sata-io.org/namingguidelines.asp
SATA is not the name of an organization. Seagate, or WD is the name of an organization.
SATA stands for Serial - ATA, whereeas PATA stands for Parallet ATA (these went on the stand IDE interface.