44 pin ide as used in laptops. You'll need a converter to hook it up to a desktop pc. You've not opened many laptops then? This was common up to 2005-2006 easily.

Its just IDE (you know, the interface that dominated for years and years before SATA?), nothing special. Check google or Ebay for a 44 pin laptop ide to desktop ide convertor. I've even got a few Core 2 laptops using IDE only, so its not exactly ancient
No its Parallel ATA sometimes called PATA which was the interface replaced by SATA, IDE stands for Integrated Drive Electronics and is a type of drive design to which PATA and SATA both belong but SCSI does not
 
	