当你在购买一个新的硬盘驱动器时，如果在产品描述中把相似或不太相似的术语混合在一起，有时会有点混乱。有鉴于此，今天的超级用户问答帖子回答了一位好奇读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

照片由威廉·沃比（Flickr）提供。

问题

超级用户读取器learnprogramming希望知道ATA是否与IDE/PATA或SATA相同：

I was taking a look at an HDD and I found a document from Toshiba (link: 2.5-Inch SATA HDD – PDF) that says:

• Drive interface: Serial ATA, Revision 2.6 / ATA-8

I know that SATA uses a SATA interface and ATA uses an IDE interface, but why is it using different “terms” in the same sentence? An HDD has either a SATA interface or an IDE interface, but not both at the same time.

ATA与IDE/PATA或SATA相同吗？

答案

超级用户贡献者Mokubai为我们提供了答案：

Serial ATA is the connection/connector interface while ATA-8 is the protocol for that interface. IDE was the interface and it also used an ATA protocol for communication. IDE and ATA are not the same thing, just as SATA and ATA are not the same either.

To be clear, IDE defined that a hard drive should have Integrated Device Electronics (I.e. a controller) onboard and communication with the host should be done according to the ATA specificati***. While IDE and ATA are very closely related, they are not the same thing.

IDE has been reverse-acronymed as PATA since the interface was a parallel connection using the ATA standard. SATA is a Serial ATA connection.

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