Have a look on whatis.com;
SATA / IDE / EIDE / SCCI etc. are ll types of hardware connection to a disk - with pros and cons (speed/performance)
RAID is about resilience where more than one disk is used - typically RAID 1 or RAID 5 - to protect against a hard disk failure and also, in some cases to improve performance.
Common modern motherboards would offer EIDE-133 (but make sure you have a 133 cable) to give the interface to the disk.