How to increase the capacity of the computer hard disk, how to expand the capacity of the computer h

Giant magnetoresistance"effect caused by the hard disk"Large capacity and miniaturization"Revolution The Nobel Prize Committee of the Royal Swedish Academy of Sciences, awarded the 2007 Nobel Prize in Physics to French scientist Albert Fell and German scientist Peter Kruberg for their contributions to the discovery of the giant magnetoresistance effect. The hard disk is also called a disk because the magnetic medium is used to store information in the hard disk. Generally speaking, there are a plurality of disk plates in the sealed hard disk cavity, and each side of the disk plate is divided into a plurality of tracks with a rotating shaft as the axis and a certain magnetic density as the interval, and each track is further divided into a number of sectors.

Each disk face of a disk slice has a corresponding data readout head. To put it simply, when the data readout head "scans" the various regions of the disk surface, the different magnetic signals recorded in each region are converted into electrical signals, and the changes in the electrical signals are expressed as "0" and "1", which become the original "decoding" of all information. With the tide of information digitization, people have begun to seek technologies to continuously reduce the size of hard disks and increase the capacity of hard disks.

In 1988, Fell and Greenberger independently discovered the "giant magnetoresistance" effect, that is, a very small change in magnetic properties can lead to a special effect of a large change in resistance. This discovery solves the most difficult problem of making large-capacity small hard drives: when the size of the hard disk continues to grow, but the capacity continues to increase, it is inevitable that each independent area of the disk that is divided into independent areas will become smaller and smaller, and the magnetic signal recorded in these areas will become weaker and weaker.

With the help of the "giant magnetoresistance" effect, people can create more sensitive data readouts, so that weaker and weaker magnetic signals can still be read out clearly and converted into clear current changes. In 1997, the first data readout based on the "giant magnetoresistance" effect was introduced, and soon sparked a revolution in the "large capacity and miniaturization" of hard disks. Nowadays, the hard disks equipped in various digital electronic products such as notebook computers and **** devices are basically applied to the "giant magnetoresistance" effect, which has become a new standard.

According to the bulletin of the Royal Swedish Academy of Sciences, another technology invented in the 70s of the last century, that is, the technology of making ultra-thin layers of different materials, makes it possible to create thin layer structures with a thickness of only a few atoms. Since the data readout head is a structure composed of multiple layers of thin films of different materials, scientists will be able to further reduce the size and increase the capacity of hard drives in the future, as long as the "giant magnetoresistance" effect is still at work. Resources.

Taking the Windows 10 system as an example, there are roughly two ways to expand the capacity of the computer hard disk, as follows:

1. It can be expanded through the mobile hard disk, and part of the data of the computer is sorted out and stored in the mobile hard disk, so as to expand the capacity of the computer hard disk, and the mobile hard disk is suitable for large-capacity transmission between different computers. It should be noted that when buying a mobile hard drive, you should go to a regular brand store to avoid buying an inferior mobile hard drive, resulting in the loss of file data.

2. You can also replace or increase the capacity of the computer hard disk, which is cheaper than the mobile hard disk, but it is not as convenient as the mobile hard disk.

You can also free up space on the hard disk by cleaning unnecessary files and junk files on the computer, generally by cleaning up the disk, the system will automatically detect temporary files and junk files, and finally clean them up. Or part of the data of the computer is stored in the cloud network disk, so as to release more memory space, and at the same time, the data stored in the cloud network disk is also more convenient for users to manage and use.

1. Check the usage of your hard disk on the computer, for example, if we want to expand the space of the D disk, we need to squeeze out the space on other disks.

2. Find my computer on the desktop, right-click --- manage--- disk management.

3. Right-click on the disk that needs to squeeze space--- compress coupon, and calculate the total amount of allocable space first.

4. Then you can view the current disk size of the computer in the allocable space, right-click to create a new coupon, or right-click to --- expand the disk that needs to be expanded.

5. Then select the space to allocate space to the specified disk.