Serial
ATA (also SATA or S-ATA) is a computer bus mainly designed for
transfer of data to and from a hard disk. SATA is the successor to the
legacy ATA interface known as IDE. The bandwidth of the first generation
Serial ATA interface is 150 MB/Sec only slightly higher than that of the IDE UDMA – 133.
SATA 2 offers 300MB / Sec transfer rate and 600MB/Sec upgrade is planned
around 2007.
SATA connectors are relatively small. This has the benefit of improving the
heat dissipation inside the PC.
What’s in it for you? Being the latest technology and being faster than old
IDE interface, it is better to ask for SATA while you consider buying a PC.
Latest motherboards have them integrated however it is advised to ensure
this.
Serial ATA is the next -generation internal storage interconnect,
designed to replace parallel ATA technology. Serial ATA is the proactive
evolution of the ATA interface from a parallel bus to a serial bus
architecture. This architecture overcomes the electrical constraints that
are increasing the difficulty of continued speed enhancements for the
classic parallel ATA bus. Serial ATA will be introduced at 150Mbytes/sec,
with a roadmap already planned to 600Mbytes/sec, supporting up to 10 years
of storage evolution based on historical trends. Though Serial ATA will not
be able to directly interface with legacy Ultra ATA hardware, it is fully
compliant with the ATA protocol and thus is software compatible.
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