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What difference between 120 gig and 120 gig serial ata hard drive?

April 26, 2017ATA Computers difference gig hardware internet serial

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What difference between 120 gig and 120 gig serial ata hard drive?

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Theoretically SATA (Serial-ATA) drives should offer faster data transfer rates than standard ATA (parallel) drives. The maximum transfer rates are: ATA – 133 MBps SATA – 150 MBps SATA II – 300 MBps In practice there is not a huge performance difference between any of these drives, but SATA and SATA II drives have some other benefits such as smaller (narrower) cables and the ability to “hot swap” drives (connecting and disconnecting drives while the PC is on and WIndows is active). Performance will be improved by choosing a drive with a faster spin speed for the platters – this will improve both data access times and data transfer speeds. Most current drives spin at 7200rpm, but there are a few that spin at 10000rpm, and some (SCSI interface only) that spin at 15000rpm!

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If you meant normal IDE hard drive for the first 120 gig then the difference is that SATA has faster transfer rates so there is a rather significant performance difference between the two. Hope that helps.