Hard drive interface introduction and comparison

Some readers reflect that they don’t know the difference among hard drives, so this article introduces the hard drive interface, including IDE, SATA and SCSI. What is IDE/ATA Hard Drive? Integrated Device Electronics. It is the most widely-used hard drive interface on the market. The fancy name refers to how the IDE technology “integrates” the electronics controller into the drive itself. The IDE interface, which could only support drives up to 540 MB has been replaced by the superior EIDE (Enhanced-IDE) technology which supports over 50 GB and allows for over twice as fast data transfer rates. The other most common hard drive interface is SCSI, which is faster than EIDE, but usually costs more. Although it really refers to a general technology, most people use the term to refer the ATA specification, which uses this technology. What is ATA? AT Attachment. The specification, formulated in the 1980s by a … Continue reading