What are the functions of the computer grid, and what are the functions of each disk of the computer

To put it simply, formatting is to divide a blank disk into small areas and number them for the computer to store and read the data. In other words, tracks and sectors are created in the disk, and only after the tracks and sectors are established can the computer use the disk to store data. Otherwise, the computer doesn't know where to write and where to read.

In a narrow sense, formatting is equivalent to zeroing out the data, deleting all data in the memory, including viruses, can also be removed and the memory can be restored to its original state.

To put it mildly, formatting is divided into high-level and low-level formatting. Advanced Format is just to erase the data on the hard disk, generate boot information, initialize the FAT table, mark logical bad sectors, etc. The low-level formatting is to divide the hard disk into cylinders and tracks, and then divide the tracks into several sectors, and each sector is divided into identification part ID, spacer, gap and data area.

Low-level formatting is a job that precedes high-level formatting, and each hard drive is low-level formatted before it leaves the factory. Low-level formatting is a lossy operation that has a negative impact on the life of the drive (don't worry, it is generally not needed). The formatting under Windows that we usually use (including the formatting used under DOS) is actually advanced formatting.

On the other hand, formatting a hard disk in Windows works the same as formatting a floppy disk. The difference with formatting a floppy disk is that the full format we do on a floppy disk is a low-level formatting.

We generally use advanced formatting, which has no impact on the disk, so you can use it with confidence. There are in the context menu, and advanced formatting is divided into "quick format" and "full format". "Quick Format" is simply resetting the hard drive partition table.

"Full Format" is to reset all sectors to zero in addition to resetting the hard disk partition table. Usually you use the fast one, if it is estimated that there is a virus on the disk, etc., you use the full format.

The new hard disk cannot be used if it is not formatted, either the new hard disk is formatted or it is equivalent to deleting all the things in it.

The new disk is not qualified and cannot be used, the old one, one can reduce the disk fragmentation, the other can delete the data, of course, the virus can also be removed.

If the new disc is not qualified, it cannot be made If it is poisoned, the lattice can be cleaned up

1. The nature is different. Memory is the workplace of the computer; Hard disks are used to store information that is not in use for the time being. 2. The production materials are not buried in the same hole.

Memory is made of semiconductor materials; Hard drives are made of magnetic materials. 3. Information storage is different. Information in memory is lost when the power is lost; The information on the hard drive can be stored for a long time.

4. The capacity is different. Generally, the capacity of hard disks is 1TB; Memory generally has a different role. The memory is a buffer between the CPU and the hard disk data, and the CPU can only read the data in the BIPI memory.

Memory becomes a bridge; Whereas, hard disks are used as storage space.

C disk: Generally copy is the system installation disk, which stores the system files, so the zhi data of the reinstalled system c disk will be lost. Generally, it is recommended to divide the system into four areas, and the C disk only needs to install the system.

D disk: suitable for installing and using software, games, or storing your movies, **, etc., E disk: can store things for your work or study.

F disk: suitable for software backup and system backup.

Win7 How to Modify Drive Letter:

Right-click Computer.

Click "Manage" to count in the computer management interface.

Click on "Disk Management".

Click "Change".

Select the new drive letter from the drop-down list and click OK.

It depends on how many disks you divide when you install the system, generally C disk is a system disk, used for the system, and the program of the system is then C disk, so C disk is important. D disk is generally a software disk,Some application software are stored in D disk,E F and so on are to put some movies and other entertainment disks,In addition to C disk,Others are generally stored according to personal preferences。。。

To put it bluntly, a hard disk is a kind of computer storage device, which you can understand in this way, that is, N heavy aluminum or glass discs are superimposed layer by layer, and their surface is coated and covered with some ferromagnetic magnetic particles. The reading process is the process of scratching the head on it, so when buying a hard disk, you should pay attention to the rate of reading the disk, of course, a good hard disk is much better in this regard, and now it is basically a fixed hard disk.

The working principle is that these disks are on each side of the disk piece, and a number of concentric circles with a rotating shaft as the axis and a certain magnetic density as the interval are divided into magnetic tracks, and each magnetic track is divided into a number of sectors, and the data is stored on the hard disk according to the sectors. There is a corresponding read/write head on each face, so all the tracks in the same position of the different heads form the so-called cylindrical surface.

The principle of hard disk data storage is to read and write by cylindrical, head, and sector as the addressing mode.

Hope it helps you understand hard drives.

Memory acts as a data broker on your computer!

It's used to store data temporarily!

The difference between it and a hard disk is that it is stored temporarily, and the data is messaged in the event of a power failure!

The above is just a matter of facts! Let's make it clear!

The hard disk is equivalent to the warehouse of the factory, and the processor is equivalent to the processing workshop! Data is transferred between them! The speed of data output in the warehouse is slow, and the processing speed in the processing workshop is fast! The result is a contrast, and it's huge!

In order to alleviate this gap, the memory is increased, if the transfer speed of the hard disk is 1, then the memory is 10, and the processing speed of the processor is 1000, from 1 to 100 The difference is a hundred times, and the memory is added, which is basically alleviated!

Of course, this is not absolute!

A hard disk is a permanent storage device, as long as it is not broken, its data will not be lost, which is conducive to storing large-scale data! The memory is not good, as long as the power is out, the data is gone, but it is quite fast!

A hard disk is a primary computer storage medium consisting of one or more discs made of aluminum or glass. These discs are covered with ferromagnetic material. The vast majority of hard drives are fixed hard drives that are permanently sealed and fixed in the hard drive.

However, now removable hard drives are becoming more and more popular, and there are more and more types.

The vast majority of desktop computers use either IDE or SCSI interfaces for hard drives. The advantage of SCSI-interfaced drives is that up to seven different devices can be connected to the same controller panel. Since the hard disk rotates at a constant high speed of 3,000-10,000 revolutions per second, it only takes a short time to read data from the hard disk.

In laptops, the hard drive can stop spinning when idle in order to extend battery life. Older hard drives have a minimum storage capacity of 5MB and use discs up to 12 inches in diameter. Today's hard disks have storage capacities of up to tens of gigabytes, and the diameter of the disks used in desktop computer hard disks is generally inches, and the diameter of the disks used in laptop hard disks is generally inches.

New hard drives are typically low-level formatted in the assembly plant to store some of the original sector identification information on the hard drive.

It is recommended that you buy a computer primer and take a look at it for yourself.

The hard disk is useless like this book, but it is used for counterweights and can be used like a brick.

Among all computer components, a hard disk is a data container used to store the software, movies, games, etc. that we usually install. In a computer, the role of a hard disk is second only to the CPU and memory. Its main function is to store the operating system, programs, and data.

With the continuous development of the IT industry, the volume and capacity of computer hard disks are being upgraded quite quickly. Due to the increase in the update speed of computer accessories, a large number of second-hand hardware has appeared, and second-hand hard drives are one of them. At the same time, there are more and more brands of hard drives, such as ASUS hard drives, Seagate hard drives, etc.

In addition, portable hard disks have emerged that have both hard disk functions and are easy to carry. At the same time, the emergence of the hard disk enclosure also provides convenience for carrying. It greatly meets the needs of users.

In fact, the hard disk is also a very fragile device in the computer and needs to be cared for. Because the slightest vibration can cause damage to the hard drive. If the hard drive is damaged, it can be sent to a professional hard drive repair center for inspection, but the data on it is likely to be lost.

If you want to play on your computer, play games or listen, a large capacity, fast and reliable hard drive is very important. Due to the process of operation or Internet surfing, a large number of temporary files may be stored on the hard disk, which affects the running speed. Therefore, it is necessary to regularly defragment and repair the hard disk.

In the event of data loss, hard drive data recovery can be used to retrieve the data during decluttering or repair.

The graphics card is responsible for the image display The hard disk carries all the data carrier, the motherboard is the body that provides the main hardware to work together, and the CPU is the general who directs all the data to run. The optical drive can be without·· And memory·· Memory is the temporary foothold of those data... I'm talking nonsense, haha

Computer hard disk: The primary storage device of a computer.