What kind of hard drive is EIDE hard drive, SATA interface?

EIDE is a reinforced IDE, which is a traditional IDE hard drive.

At present, the performance development of hard disks has encountered a bottleneck, mainly because the internal transfer rate cannot be effectively improved.

The methods to improve the internal transfer rate are to increase the speed of the disk and increase the storage density, the former is embodied in the 15K speed of the hard disk, but the power consumption is very high, the heat is large, easy to fail, and the noise is very high.

The latter ......There must be a new storage method or medium.

Increasing the cache of the hard drive is also an effective way to improve the efficiency of the hard drive, but it is more expensive to do so.

The difference between the IDE hard drive and the SATA 1 2 hard drive is the external interface, and of course, the latter will definitely be more promising than the former, because it can provide greater bandwidth ......

In fact, the performance of earlier SATA drives is ...... no different than IDE drives

Q: What is the difference between Serial ATA and ATA133 100?

Answer: Serial ATA is referred to as Serial ATA, which is a new type of interface that is completely different from parallel ATA such as ATA133 100. It uses serial mode for data channeling, so the simplicity, scalability and efficiency of the system are stronger than parallel ATA.

The Serial ATA standard was developed by the Serial ATA Committee and has been published in two versions, with an interface bandwidth of 150MB S and an interface bandwidth of 300MB S for the interface.

Q: Is the ATA133 interface better than the ATA100?

A: No, since the current hard drive has a STR connection data transfer rate of only 40-50MB s, which is much lower than the interface bandwidth of ATA 100 or 133. The increase in interface bandwidth is only useful to improve the burst transfer rates of the hard disk, and the burst data transfer rate has a very small impact on improving the disk performance of the whole system, so the main benefits of ATA133 are:

The combined bandwidth of the disks increases when two drives are connected to the same lane, and the ATA133 allows for a large capacity of more than 137GB (137GB is the limit of the ATA100).

Q: Are the ATA100 133 drives backwards compatible?

A: Yes, all ATA drives are backwards compatible with PIO DMA ATA 33 66 100. The type of interface supported by the drive is related to the type of hard disk interface, motherboard chipset, and operating system.

Support can only be completed if all three are supported at the same time. In addition, when applying, you should pay attention to the problem of hard disk capacity barriers, such as the Pentium 2 (ATA33) system will not be able to access the capacity greater than the limit).

Q: What is the IDE connection cable? 40 80 pins, what is the difference between flat or curved?

A: The IDE connection cable is the connection cable used to connect the hard drive to the host system, and there are now two types of IDE connection cables. ATA 33 and its downward connection type use a 40-core 40-pin connection cable, while ATA 66 100 and ATA 133 use a 40-core 80-pin connection cable.

There is no limit to the shape of the connecting cable, it can be round or flat, and both work the same, but flat cables are more common.

SATA is faster than IDE, and IDE is being phased out.

The interface is not connected, IDE is a parallel port, SATA is a serial port, it is the IDE interface hard disk that appeared after the emergence of IDE is the most widely used in the current computer, the mainstream specifications include ATA 66, ATA 100, ATA 133, this naming method also shows that their theoretical external maximum transfer rate reached 66MB S, 100MB S and 133MB S respectively. It should be noted here that 100MB s and 133MB s are peak speeds, which does not mean that the hard disk can sustain this speed, that is to say, this is the theoretical maximum peak speed.

The real transfer speed of a hard disk is affected by the internal transfer rate of the hard disk, and its stable transfer rate is generally between 30MB s and 45MB s. In this way, with the continuous improvement of the running speed of hardware such as CPU and memory, the low speed of ATA hard disk has gradually become a bottleneck that affects the running speed of the whole machine. As a result, a new way of hard disk interface, Serial ATA came into being.

Serial ATA hard disk is what we often call serial port hard disk, which uses a point-to-point method to achieve data packet transmission, which brings higher transmission efficiency. The Serial ATA version of the hard drive starts at a transfer rate of 150MB s, while the Serial ATA version will achieve a peak data transfer rate of 600MB s, which finally solves the system bottleneck problem of the hard drive.

One is a parallel port and the other is a serial port.