Difference Between PATA and SATA

PATA Vs. SATA: Know the Difference Between PATA and SATA

Both of these are two different versions of Advanced Technology Attachment (ATA) that describe the transport, physical, and command protocols to attach the host systems to the storage devices internally. There is a primary difference between PATA and SATA. PATA is basically an earlier technology and comes with various limitations related to electromagnetic interference, integrity, and signal period. SATA, on the other hand, is a later technology. It is much smaller in size, faster, and more efficient as compared to the PATA.

What is PATA?

The term PATA is an acronym for Parallel ATA (Advanced Technology Attachment). It is a type of bus interface that we utilize for connecting various secondary storage devices. Such devices include optical drives, hard drives, and many more.

Western Digital and Compaq first introduced PATA in 1986. SATA later replaced it with better technology.

What is SATA?

The term SATA is an acronym for Serial ATA. It is also a type of bus interface that connects the optical drives, hard discs, etc. It came into the market with the Serial ATA Working Group back in the year 2001 after PATA started declining slowly. SATA is more technically advanced and gives more advantages as compared to PATA. Thus, it has a better demand in the market.

Difference Between PATA and SATA

Here is a list of the differences between PATA and SATA.

Parameters PATA SATA
Full-Form The term PATA is an acronym for Parallel Advanced Technology Attachment. The term SATA is an acronym for Serial Advanced Technology Attachment.
Advancement in Technology PATA is an older technology. SATA is a newer and more advanced form of technology.
Type of Connector PATA is basically a connector of 40-pin type. SATA is a connector of a 7-pin type.
Cost Efficiency It is more expensive, thus less cost-efficient. It is cheaper, thus more cost-efficient.
Speed The overall speed of transferring data is much lower. The overall speed of transferring data is much higher.
Power Consumption It consumes more power. It consumes less power.
Cable Size It consists of a much bigger cable size. It consists of a much smaller cable size.
Hot-Swapping PATA does not come with any hot-swapping feature. The hot-swapping feature is available with SATA.
External Hard Drives You cannot use an external hard drive in this case. It allows you to use an external hard drive on a system.

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