Thank for your explanation and for the image of IDE/PATA and SATA. I got now clear view between IDE/PATA and SATA HDD. May I ask you some more question Can I attached external 250 GB SATA HDD through 2.0 USB connection to my Compaq Presario V2000 model and retain my current 80GB IDE HDD? So i wont remove the current HDD but add new external HDD!
Hope to hear from you soon