Can you explain to me the various data about the hard drive?

Capacity: 160g

Interface standard: S-ATA II

Speed: 7200rpm

Cache capacity: 8m

Transmission standard: SATA2 300

The hard disk of a notebook is inch, and the hard disk of a desktop is inch, not only the interface is different.

The interface of the general notebook is ATA, and if you want to buy a hard disk, you must first understand what model your computer hard disk is.

Performance metrics of the hard drive:

1. Capacity As the data memory of the computer system, capacity is the most important parameter of the hard disk. The capacity of a hard disk is measured in megabytes (MB) or gigabytes (GB), 1GB = 1024MB. However, the hard disk manufacturer usually takes 1g = 1000MB when the nominal hard disk capacity, so the capacity we see in the BIOS or when the orange hole formats the hard disk will be smaller than the manufacturer's nominal value.

The capacity metric of a hard disk also includes the capacity of a single disk of the hard disk. The so-called single-disk capacity refers to the capacity of a single disk of the hard disk, the larger the single-disk capacity, the lower the unit cost, and the shorter the average access time.

2. Rotational speed (rotationl speed or spindle speed) is the rotation speed of the motor spindle in the hard disk, that is, the maximum number of revolutions that the hard disk platter can complete in one minute. The speed of rotation is one of the important parameters to indicate the grade of the hard disk, and it is decisive. Performance metrics of hard disks, including hard disk capacity, hard disk speed, hard disk speed, interface, cache, hard disk single disk capacity, etc.

1. Hard disk capacity As the data memory of the computer system, capacity is the most important parameter of the hard disk. For users, the capacity of a hard drive, like memory, is always too little, not too much. The capacity of a hard drive is measured in megabytes (MB) or gigabytes (GB), 1GB = 1024MB.

However, hard drive manufacturers usually take 1g = 1000MB when nominal hard disk capacity, so the capacity we see in the BIOS or when formatting the hard drive will be smaller than the manufacturer's nominal value.

2. Hard disk speed Rotationl speed or spindle speed is the rotation speed of the motor spindle in the hard disk, that is, the maximum number of revolutions that the hard disk platter can complete in one minute. The speed is one of the important parameters to indicate the grade of the hard disk.

Your understanding is basically correct.

After the files are stored, the continuous white space on the hard disk will be used first, this white space refers to the area where there are no files to store, and the space formed after you delete the files will also be counted as empty space. In the absence of contiguous white space, storage is plugged in, resulting in disk fragmentation.

For example, if your previous 5G files did not form a continuous blank space, large files such as movies will be stored in the hard disk space behind.

For the recovered files, there will also be the problem of not being able to open or messing up after opening, the main reason is indeed because there may be subsequent file writing operations, or it may be due to the fact that there are more cross-links in these files, and there are more disk fragments that cause the recovery software to not find all the fragments of the file. If you use EasyRecovery for recovery, the files that you find that show as D X are cross-linked.

It should be possible, you don't store the file with the same name, then the original deleted file can still be retrieved, you go to the next trusted software on the Internet to recover it!

Is there a partition that is not active?