areal density hard drive

working principle remain unchanged, and the hard disk is more vulnerable to damage due to the increase in Hard Drive Speed and disk density. In general, if the hard disk is faulty during the warranty period, you must find the seller's warranty or replacement as soon as poss

and cannot boot A hard disk is an external storage device for magnetic media, on each side of the platter, a plurality of concentric circles with the axis of rotation and a certain magnetic density are divided into tracks (Track), each of which is divided into several sectors (sector), and the data is stored on the hard disk by sector. (1) What is the main boo

the temporary access to the hard disk, as far as possible to put it properly, preferably fixed on the hard drive bracket, do not hang casually on the chassis. Many users think that just temporary exchange of data, put the hard drive casually placed. In this case, the

Jump out of hard drive misunderstandingSeveral common sense questions that have been misleading Gao Peng for many years are:1. Hard Disk logical bad sectors can be repaired, but physical bad sectors cannot be repaired. The actual situation is that bad channels are not divided into logical and physical bad channels. I don't know who invented these two concepts. Th

are not recognized can also be repaired, but it is difficult to partition when the 0 channels are bad.This is misleading. For example, if you have not collected and studied foreign-language materials for a long time, you cannot say that you have used them as your creed for a long time. There are many professional hard drive repair forums in foreign countries, where you can find that

1.1956 years, IBM's IBM RAMAC is the prototype of a modern hard disk, it is equivalent to two refrigerator volume, but its storage capacity of only 5MB. 1973 IBM 3340 came out, it has "Winchest" this nickname, from his two 30MB storage unit, just the famous "Winchest rifle" caliber and the amount of ammunition. At this point, the basic structure of the hard disk is established. In 2.198, two fo

internal data transfer rate, in addition, the increase in the capacity of a single disk to increase the linear density (the number of tracks per inch) has also been improved, which is conducive to the reduction of hard disk seek time. Viii. average seek times (Average) Average seek time is the time from which the hard disk is obtained from the command to the d

sectorsx512 bytes = 31914983424 bytes = 30.436 GBThe sector size is 512 bytes, but we actually store the smallest particles can be larger than 512 bytes, so in the format, we can choose the allocation unit size, that is, logical block block, for example, when we specify the format of the minimum data storage unit is 1024 bytes, then a Block is 1024 bytes, or 1 blocks equals 2 sectors.How does the drive capacity grow?(mechanical) Although the capacity

Regularly checking the health of your hard disk is something that every system administrator has to do. When it comes to the health of the hard drive, you have to say s.m.a.r.t first. Smart is a kind of disk self analysis testing technology, as early as the end of the 90 has been basically popular Each hard disk (inc

Let the hard disk faster, so that the system more stable, summed up there are nine links, the following one by one. One, the rational use of hard disk What is the rational use of the hard disk? First, we need to understand the physical structure of the hard disk disc. partitions and formatted

Written in front of the words: "Understand hard disk", the basic composition of the hard disk and the basic concept of said, basically from the hardware point of view, this article to write hard disk, the basic concept is not said, directly to see the previous article can be, focus on the file and system partition in the hard