ATA - Advanced Technology Attachment
PATA - Parallel Advanced Technology Attachment
Advanced Technology Attachment is an Interface standard for connecting storage devices like Hard Drive, CD-ROM or floppy drives to Motherboard interfaces. Normally, a 40-pin connector is used to make such type of connections.
The length of the cable in PATA can go up to 18 inches, limiting the use of interface for internal computer storage only. For many years, it remained the first choice of the hardware manufacturers, due to its low cost and reliable speed. An interface can provide a speed of upto 100 Mbps.
ATA was preceded by Serial ATA in 2003. With the introduction of Serial ATA, Basic Advanced Technology Attachment (ATA) was renamed as Parallel ATA (PATA).