ATA is an acronym stands for Advanced Technology Attachment. ATA is a standard physics used to connect storage devices within a computer. ATA facilitates hard disks and CD-ROMs to be internally connected to the motherboard and perform basic input/output functions.
ATA is also known as Integrated Device Electronics (IDE) which is called as ATA with Packet Interface (ATAPI).
The ATA interface standard makes you able to connect support, integrate and portable storage devices without the need for an external controller. The ATA interface is a set of thin wires merged within a cable bus that are used to transfer data in and out of the disk drives. It was initially supported only parallel communication and was also called Parallel ATA (PATA).
The Parallel ATA (PATA) contains a 40-pin controller cable and data transfer speed of 16-32 bits at a time. Later, PATA was replaced by Serial ATA (SATA) which has enhanced data I/O speed.