4200 RPM hard drive data recovery software free download
- Publish Time：2018-09-18 08:32
What does the hard disk 4200RPM mean?
An index of hard disk performance, which means that the hard disk rotates 4200 rpm. Its speed affects the seek time of the head, that is, the time to find a file. Generally speaking, the faster the better, the faster it is to find things. .
Rotationl Speed is the rotation speed of the motor spindle in the hard disk, which is the maximum number of revolutions that the hard disk can complete in one minute. The speed of the speed is one of the important parameters to indicate the grade of the hard disk. It is one of the key factors determining the internal transmission rate of the hard disk, which directly affects the speed of the hard disk to a large extent. The faster the hard disk speed, the faster the hard disk finds the file, and the relative hard disk transmission speed is improved. Hard disk speed is expressed in revolutions per minute. The unit is expressed as RPM. RPM is the abbreviation of Revolutions Perminute, which is transfer/minute. The larger the RPM value, the faster the internal transfer rate, the shorter the access time, and the better the overall performance of the hard disk.
The spindle motor of the hard disk drives the disk to rotate at a high speed, generating buoyancy to float the head above the disk. To bring the sector of the data to be accessed under the head, the faster the speed, the shorter the waiting time. Therefore, the speed determines the speed of the hard disk to a large extent.
The average hard disk speed of a household is generally 5400 rpm and 7200 rpm. The high-speed hard disk is also the first choice for desktop users. For notebook users, it is 4200 rpm and 5400 rpm. Although the company has released a 7200 rpm notebook hard disk, The market is still relatively rare; server users have the highest performance requirements for hard drives. The SCSI hard drives used in servers are basically 10,000 rpm, or even 15,000 rpm, and the performance is much higher than that of household products.
The higher speed can shorten the average seek time and actual read and write time of the hard disk, but as the speed of the hard disk increases, it also brings negative effects such as temperature rise, increased motor spindle wear, and increased working noise. The notebook hard drive speed is lower than the desktop hard drive, which is partly affected by this factor. The internal space of the notebook is small, and the size of the notebook hard disk (2.5-inch) is also designed to be smaller than the desktop hard disk (3.5-inch). The temperature rise caused by the increase in the rotational speed, which puts higher requirements on the heat dissipation performance of the notebook itself; the noise becomes larger. And must take the necessary noise reduction measures, which put more demands on the notebook hard disk manufacturing technology. At the same time, the increase of the rotational speed, while the other remains unchanged, it means that the power consumption of the motor will increase, the more electricity is consumed per unit time, and the working time of the battery is shortened, so that the portability of the notebook is affected. Therefore, notebook hard drives generally use a relatively low-speed 4200rpm hard drive.
The speed is changing with the increase of the hard disk motor. Now, the fluid dynamic bearing motors have completely replaced the traditional ball bearing motors. Liquid bearing motors are commonly used in the precision machinery industry. They use mucous liquid oil bearings to replace the balls with oil film. This can avoid direct friction of the metal surface, minimize noise and temperature; at the same time, the oil film can effectively absorb vibration, improve the seismic resistance; reduce wear and improve life.
ASUS ZX50JX4200 computer hard drive is formatted, how to retrieve the previous data
The computer hard disk is formatted and can be recovered by physical means. After the hard disk is formatted, do not store new data files in it. This can avoid the data files in the hard disk being overwritten, and then use the powerful data recovery software. After scanning the computer hard disk, you can see that many files have been scanned. We can find the files that need to be recovered.
Hard disk file formatting is easy to retrieve, but if you want to retrieve the hard disk formatted file, you can't continue to use the hard disk to save data after you format the file on your hard disk, especially write New data, because your newly written data will overwrite your previously formatted file data, affecting your recovery of the formatted file, if you do not do anything, it is recommended to use the mutual shield data recovery software to recover The file data of the computer hard disk formatted.
Start the computer with the peu disk system, use the diskgen with the recovery of the partition table, one can restore the formatted deleted data. Online search has detailed tutorials.