What is the interface of computer hard disk, what is the interface of notebook hard disk?

If you want to buy a 250G hard disk, it is estimated that the IDE interface does not have this kind of hard disk, or the capacity should be smaller. If you want to change the computer in the future, you need to use the motherboard with the IDE interface to match this kind of hard disk, because now it is common to use a lot of serial port hard disks, and it is better to use serial port hard disks for computer upgrades in the future. High-capacity hard drives are now serial interfaced.

You should be talking about the P-ATA interface, also known as the IDE interface, commonly known as the parallel port.

At present, the mainstream hard disk interface is serial port, that is, S-ata

Although the hard disk of the S-ATA port is faster and the technology is relatively new, it is cheaper than the hard disk of the IDE port. This is something to be aware of.

Although there are also adapter cables for S-ATA to IDE port, it is recommended not to use them, as the effect is not good.

The 250g seems to be only available at the S-ATA port.

In the past, the hard disk interface was IDE interface, 80 cores, and the optical drive was generally 40 cores, which was also IDE.

Nowadays, the more popular hard disks are SATA (serial port) interface.

In fact, most of the new computers are bought now, and the hard disk interface of the motherboard is only SATA, but the IDE interface will not disappear in the short term, and an IDE interface will generally be left, because most of the interfaces of the optical drive are still IDE now. You can borrow two hardware from one IDE cable, and you can connect the optical drive and the old hard disk to one cable.

These lines are very cheap. When you go to the place where you install the computer, the boss can send it for free.

As for the 250g hard drive, which one you say is better, it's hard to say.

It is recommended that you detach the old hard drive and hard drive cable and buy it, absolutely yes. And you know everything after you buy it.

A wide strap like a cable, right? That's the IDE interface.

1. The current mainstream interfaces of notebook hard disks are, and in the past two years, the two are backward compatible;

2. In the early years, the old computers were basically IDE interfaces;

3. In addition, some portable notebooks use MSATA interface SSDs (MSATA is similar to mini-PCI interface).

Standard laptop hard drives are inches, or 9mm, and some are 7mm.

There are two kinds of hard disks in notebooks, one is ATA interface, commonly known as IDE hard disk, and the other is the more commonly used SATA interface, serial port hard disk, but the machine a few years ago is not easy to judge that it is that kind of hard disk, use identification software to identify it.

As shown below: The following is a screenshot of the software (the software can not only provide the control of the hard disk, but also quickly detect the health status of the hard disk).

SATA interface:

ATA interface:

Size:The hard disk used by laptops is generally 25 inches, while desktops are inches, laptop hard drives are one of the few universal parts in laptops, basically all laptop hard drives can be universal.

Thickness:However, laptop hard drives have a parameter that desktop hard disks do not have, that is, thickness, and standard laptop hard disks have three thicknesses. The hard disk is designed for ultra-light and ultra-thin models, and the hard disk is mainly used for large-thickness optical and soft interchange and fully built-in models, as for the hard disk, it is the product of the small capacity of a single disk in the past, and now there is basically no model used.

Revolutions:The fastest laptop hard disk is now 5400 rpm 2m cache, supporting DMA100 (the mainstream model only has 4200 rpm 512k cache, supporting DMA66), but its speed is far from the slowest 5400 rpm 512k cache hard disk on desktops. Laptop hard drives are now the biggest bottleneck in laptop performance.

Interface Type:Laptop hard disks are generally connected to the motherboard in three ways: directly connected to the socket on the motherboard with the hard disk pins, connected to the motherboard with a special hard disk cable, or connected to the socket on the motherboard by using an adapter interface.

Either way, the effect is the same, it just depends on the manufacturer's design.

Capacity & Technology:As applications become larger and larger, the capacity of hard disks is also increasing, and for laptop hard drives, it is not only required to be large in capacity, but also in small size. In order to solve this contradiction, the hard disk of notebook computers generally adopts magnetoresistive head (MR) technology or extended magnetoresistive head (MRX) technology, MR head records data at a very high density, thereby increasing disk capacity, improving data throughput, while reducing the number of heads and disk space, improving the reliability of the disk and anti-interference, vibration performance.

It also features advanced technologies such as an enhanced adaptive battery life extender, PRML digital channels, and a new smooth head loading and unloading.

Here are some other more common questions about laptop hard drives:

Laptop hard drive partitioning issues.

Is the speed of laptop hard disk all 5400 rpm?

Newly bought laptop hard drives are noisy.

What are the interfaces of notebook hard drives.

Laptop to dual hard disk tutorial.

Hope the above information is helpful to you.

The current mainstream interface of notebook hard disk is, in the past two years, the two are backward compatible;

In the early years, the old computers were basically IDE interfaces;

In addition, some portable laptops use SSDs with mSATA interface (mSATA is similar to mini-PCI interface).

Standard laptop hard drives are inches, or 9mm, and some are 7mm.

There are two interfaces for the commonly used desktop hard disk and the inch laptop hard disk.

1. The first interface is the SATA interface.

2. The second type of interface is the PATA interface, also called the IDE interface.

Both of the above types of hard drives are internal hard drives. If you need to connect the internal hard drive to a computer outside the chassis, you need to use a portable hard drive enclosure or adapter to do so.

In SSDs, the vast majority of them use SATA interfaces, followed by MSATA, NGFF, PCI-E and other interface types.

1. The reason why SATA interface has high coverage is that it is compatible with traditional mechanical hard disks. It should be reminded that the mainstream SSDs on the market currently use the interface below SATA2, and the speed cannot be fully exerted, so it is best to use the native SATA3 interface.

2. The mSATA interface, as the name suggests, is derived from SATA, and has the interface specification proposed by the SATA Association, which is suitable for miniaturized equipment and has general development prospects.

3. NGFF interface, the interface standard proposed by Intel, is suitable for miniaturized equipment, with high consistency in width and thickness, high versatility of interface, large bandwidth reserved for interface, and small development bottleneck.

4. PCI-E interface, large transmission bandwidth, small development bottleneck, has long been the standard configuration of enterprise-level SSD, suitable for high-end and large-capacity enterprise-class SSD.

Desktop computers have SSDs.

IDE, EIDE, SCSI, SATA, these are built-in and add-in, as well as 1394, esata.