What is a port hard drive

PATA is called parallel ATA hard drive, with a four-core power cord and a 80-core data line connected to the motherboard, which transmits data in parallel and in a column (string) transmission. Due to the restriction of parallel transmission, transmission rate is low, PATA hard drive is not needed.

Introduction to the same port

PATA standard specification was produced in the 80 's in the middle of the last century, Imprimis company launched the Wren series 5.25-inch hard disk (then Compaq PC use of the hard disk) dedicated to the "PCAT" interface, the subsequent 3.5-inch hard disk also adopted this specification. Because the name "PC at" is easily confused with the IBM Pc/at machine, people choose another name for it: "Advanced Technology Attachment (Advanced Technical Attachment Specification)", referred to as ATA. But it's not what we call "first-generation ATA". This specification only survives for a few months, because it makes the hard drives of different vendors have serious incompatibilities, especially when the master and slave disks are installed. ATA-6, which is what we call the ata/100, ultradma/100, is the most common ATA specification at the moment, and it only passed ANSI certification in 2001 years. ATA-6 increased the ULTRADMA 5 transmission mode, the rate increased to the 100mb/s level, while the LBA mode of addressing capacity from the original 28 to 48 bits, which broke the maximum usable capacity of the hard disk can only be less than 137GB limit!

The current mainstream of ATA-100 and ATA-133, using 80 rows as a data line line. In the transmission speed, ATA-100 speed is 100mb/s, then ATA-133 speed is 133mb/s. From this aspect, SATA is much faster than PATA.