What is the format of the disk in my computer? Is there any difference?

Now there are NTFS and FAT16 and FAT32 in the computer

FAT (File Allocation Table) stands for "File Allocation Table". For us, it's about the management of hard drive partitions. FAT16, FAT32, and NTFS are the three most common file systems.

FAT16: We used to use the FAT16 file system for DOS and Windows 95, and now the commonly used Windows 98 2000 XP and other systems support the FAT16 file system. It can manage partitions up to 2GB in size, but each partition can only have up to 65,525 clusters (clusters are a unit of disk space configuration).

As the capacity of a hard disk or partition increases, each cluster will take up more and more space, resulting in wasted hard disk space.

FAT32: With the advent of high-capacity hard drives, starting with Windows 98, FAT32 became popular. It is an enhanced version of FAT16 and can support partitions up to 2TB (2048G).

The FAT32 uses smaller clusters than the FAT16, which effectively saves hard disk space.

NTFS: A disk format supported by the Microsoft Windows NT kernel family of operating systems specifically designed for network and disk quotas, file encryption and other management security features. With the popularization of Windows 2000 XP with NT as the kernel, many individual users have begun to use the data file storage in clusters, but the size of the cluster in NTFS does not depend on the size of the disk or partition.

The reduction in cluster size not only reduces the waste of disk space, but also reduces the possibility of disk fragmentation. NTFS supports file encryption management and provides users with a higher level of security.

That's the main difference between them.

Hard Drive: Very hard, can't bite it.

Disc: Reflective.

Floppy disk: Very soft and can be bitten.

USB flash drive: You can move freely.

Frisbee: Throw the disc out.

That's all I think ......

It is different in different systems, just speaking of Windows, before 98, FAT and FAT32 were the mainstay, just a simple destructive format. 2000XP has NTFS, which is relative to FAT, the maximum capacity of the divisible hard disk has increased, and the confidentiality has increased.

There are two types: FAT32 and NTFS. NTFS supports disk and folder encryption. The others are no different in practice.

1. Cache size. Currently, the cache size is 256MB, 128MB, 64MB, 32MB, 16MB, and 8MB. Among them, the inch mechanical hard disk, that is, the hard disk used for desktops, has a cache starting specification of 64MB and a maximum of 256MB, of which the cache of 128MB and 256MB is mostly used for specifications above 4TB, and 64MB and 128MB specifications are used for specifications below 3TB; Inch HDDs, also known as laptop hard drives, have a cache of 8MB at the lowest and 128MB at the highest.

Don't underestimate this bit of cache of the hard disk, because the internal data transfer speed of the hard disk is different from the external interface transmission speed, the cache plays a role in buffering. The size and speed of the cache are important factors directly related to the transfer speed of the hard disk, which can greatly improve the overall performance of the hard disk. When the hard disk accesses the fragmented data, it needs to continuously exchange data between the hard disk and the memory, if there is a large cache, the fragmented data can be temporarily stored in the cache, reducing the load on the external system, and also improving the data transmission speed.

2. The difference in speed. At present, the mainstream mechanical hard disk speed is mainly divided into 5400 rpm, 5900 rpm and 7200 rpm, of which both inch and inch hard disk have 5400 rpm and 7200 rpm speed products, and 5900 rpm speed products only appear on inch HDDs, mainly NAS storage hard disks. The speed of the hard disk largely determines the read and write performance and heat generation of the hard disk.

It is worth noting that the 7200 rpm high-speed hard disk does not represent the absolute performance of the hard disk, and the 5400 rpm hard disk is fully killed, and the main performance advantage of high speed is reflected in the random read and write ability, and the continuous read and write ability gap is very small (different speeds of the same specification).

3. The number of platter heads. The hard disk is mainly composed of servo circuits, control chips, motors + head arms and disk platters, in which the number of platters and head arms is the basis for determining the capacity of hard disks. The more discs, the more heads are needed (generally one platter corresponds to two heads, the front and back sides read and write), and the larger the capacity.

There are three types of hard drive formatting: quick format, formatting, and low-level formatting.

In the Windows system, the C drive, where the operating system is located, will be strictly automatically protected, and does not support any formatting operations in the Windows environment;

In addition to the C disk partition where the operating system is located, other partitions can generally be formatted (if the operating system has been optimized, for example, the virtual memory has been transferred to the D (or other partition) disk during optimization, various temporary files have been transferred to the D (or other partition) disk, and when installing some important software, the D (or other partition) disk partition is also selected, and the D (or other partition) disk will also be automatically protected).

For various formatting differences:

1. Quick format, right-click the disk partition letter, select "Format" in the drop-down list, and check "Quick Format" in the pop-up box, this operation is only to mark all tracks of the entire hard disk as "writable" at the level of the operating system and the hard disk, and the data on the hard disk is not deleted (the data before formatting can be easily retrieved through diskgen), when the system has data written to the hard disk, the data is directly overwritten on the original file (it cannot be understood that an item in life is placed on another item). In fact, the data in the hard disk is also composed of binary 0 and 1, for example, the binary of a certain piece of data on the hard disk is 0100 1101, and the quick format does not delete this data, when a new data 1001 0001 is written again, then the previous 0100 1101 is completely rewritten to the current 1001 0001). Because of this, the quick format is very fast, and a 1T hard disk can be completed in just 20 seconds.

2. Formatting, that is, the above ** does not check "quick format", at this time, the formatting speed is related to the original data volume of the hard disk or partition, the data volume is large, and the formatting time is long; If there is little data, the formatting process is relatively quick; This process will erase the original saved data on the hard disk (in fact, it is not completely erased, and some professional data repair institutions and software can still recover data to a certain extent).

3. Low-level formatting, this process needs to be operated in DOS state, using DM, PQ and other professional software tools, this formatting is the most destructive to the data of Xinyuan County of the hard disk, and the data is difficult to recover after the low-level formatting of the hard disk; However, low-level formatting is not commonly used, and it will also bring damage to the hard disk platter, seriously reducing the service life of the hard disk; Since the formatting is very thorough, the formatting also takes longer.

For ordinary users, the first two operations generally meet the needs, and there is no need for the third way of operation.

Generally, there are two types of fat32 and nets format, and they are also the two most commonly used formats, in fact, there is no better way to say this, the main thing is that it is convenient, and it is good to suit yourself, generally I choose the fat32 format. I hope to adopt it

The two formats of hard disks are FAT32 and NTFSF32 and NTFS.

Prior to the introduction of the FAT32 file system, the file system commonly used by PCs was FAT16. Like based on ms-dos, win

95 and other systems all use the FAT16 file system. In win

Under 9x, FAT16 supports a maximum of 2GB of partitions. We know that computers keep information in areas called "clusters" on hard disks. The smaller the cluster used, the more efficient it is to hold information.

In the case of FAT16, the larger the partition, the larger the cluster, the lower the storage efficiency, which will inevitably cause a waste of storage space. And with the continuous improvement of computer hardware and applications, the FAT16 file system can no longer adapt well to the requirements of the system. In this case, an enhanced file system, FAT32, was introduced.

Compared with FAT16, FAT32 has the following characteristics:

Compared with the FAT16, the biggest advantage of the FAT32 is that it can support a disk size of up to 2TB (2047GB), but it cannot support partitions smaller than 512MB. FAT32-based win

2000 can support partitions up to 32GB; And based on.

fat16 win

The maximum number of partitions supported by 2000 is 4GB.

Thanks to the smaller clusters, the FAT32 file system can store information more efficiently. For example, if the size of two partitions is 2GB, one partition uses the FAT16 file system and the other partition uses the FAT32 file system. The cluster size of the FAT16 partition is 32 KB, while the cluster of the FAT32 partition is only 4 KB in size.

In this way, the storage efficiency of FAT32 is much higher than that of FAT16, which can usually be increased by 15%.

The FAT32 file system can be relocated to the root and using a backup copy of the FAT. In addition, the boot record of the FAT32 partition is contained in a structure containing critical data, reducing the possibility of computer system crashes.

NTFS file system.

The NTFS file system is a security-based file system that is Windows

NT adopts a unique file system structure, which is based on the protection of file and directory data, while taking care of saving storage resources and reducing disk footprint. Very widely used Windows

NTFS is used

I believe that the strong system security it brings must have left a deep impression on the majority of users. win

2000 with a newer version of NTFS file system? ntfs

Its launch makes it possible for users to not only do things like win

9x makes it easy and fast to operate and manage your computer, while also enjoying the system security that NTFS brings.

NTFS for XP and FAT for 2000