SATA- Serial Advanced Technology Attachment (SATA) is high speed serial interface designed to replace IDE and EIDE drive standard SATA has a seven pin connector. SATA transfer speed of data up to 600 MB per second. Now a day use SATA.
IDE- Integrated Drive Electronics (IDE) it has a 40/80 pins connector. IDE transfer speed of data up to 100/133 MB per second few time ago mostly use IDE.