What is the IDE on your hard disk

The IDE (integrated-drive-electronics) is now a commonly used external interface, mainly for hard drives and optical drives. Using 16-bit data parallel transmission mode, small size, fast data transmission. An IDE interface can only receive two external devices.

The IDE's English is all called "Integrated Drive Electronics", or "Electronic integrated Drive", which is meant to be the hard drive that integrates the hard disk controller and the disk body. The integration of the disk and the controller reduces the number and length of cables to the hard drive interface, enhances the reliability of the data transmission, and makes it easier to make the hard drive because the hard drive manufacturer does not need to worry about whether its hard drive is compatible with the controller produced by other manufacturers. For users, hard disk installation is also more convenient. IDE this interface technology from the birth has been constantly developing, performance has been continuously improved, its low-cost, compatible with the characteristics of strong, for its other types of hard disk can not replace the status.

Early IDE interfaces have two transport modes, one is PIO (programming I/O) mode and the other is DMA (Direct Memory Access). Although DMA mode system resources are low, they require additional drivers or settings and are therefore less acceptable. Later, in the case of higher speed requirements, the DMA mode is more efficient, the operating system starts to support directly, and the manufacturer has introduced more and more Fast DMA mode transfer speed standard. Starting with Intel's 430TX chipset, it provides support for Ultra DMA 33, provides maximum 33mb/sec data transfer rates, and then quickly develops to ata66,ata 100 and the ATA 133 standard provided by 66MB/SEC, respectively. Maximum data transfer rate for 100mb/sec and 133mb/sec. Notably, the ATA 133 standard proposed by the company did not receive extensive support from the industry, and only in the HDD manufacturer did the ATA 133 standard, while Hitachi (IBM), Seagate and Western data all adopted ATA 100 standard, and the chipset manufacturer only Via,sis, Ali and Nviidia support the secondary standards, and Intel in the chipset manufacturer only supports the ATA 100 standard.

Various IDE standards are well backward-compatible, such as ATA 133-compliant ATA 66/100 and Ultra DMA33, while ATA 100 is also compatible with Ultra DMA 33/66. It is important to note that for ATA 66 and above IDE interface transport standards, a dedicated 80-core IDE line must be used to increase the signal stability by adding 40 ground lines compared to the normal 40-core IDE line. The IDE represents a type of hard disk, but in practical applications, it is also customary to use the IDE to address the earliest IDE type hard disk ATA-1, a type of interface that has been eliminated with the development of interface technology and later branched out into more types of hard disk interfaces, such as ATA, Ultra ATA, Interfaces such as DMA, Ultra DMA, and so on are part of the IDE hard disk. The hardware interface is now transferred to SATA, and the IDE interface will exit the stage sooner or later.

Disadvantages

IDE Interface Advantages: Low price, strong compatibility, high cost performance

IDE interface disadvantage: Slow data transfer, short cable length, less connected devices