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What is fat format

藏色散人
藏色散人Original
2020-09-11 11:01:5326000browse

The fat format is a disk format under Windows, but the FAT format is basically no longer used. The main disk formats under Windows include FAT16, FAT32, NTFS, etc. The latest format is exFAT. Different disk formats have different characteristic.

What is fat format

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Disks are the most commonly used storage in computers. The main disk formats under Windows include FAT16, FAT32, NTFS, etc. The latest format is exFAT. Different disk formats have different characteristics. The FAT format is basically no longer used. The formats under Linux are ext series, ext4, ext3, etc.

exFAT

When a U disk exceeding 4GB is formatted, it will be formatted as an NTFS partition by default, but this format is very harmful to the U disk because the NTFS partition uses "log" "Style" file system needs to record detailed read and write operations, which will definitely damage the flash disk chip because it requires continuous reading and writing.

Please see the comparison of exFAT, NTFS and FAT partitions below

What is fat format

Advantages

1. The support is very large Files and storage devices

2. Support for performance improvements

3. Support for future innovative scalability features

4. Added Flash media compatibility

Disadvantages

The Windows version requires high requirements.

Purpose

exFAT was originally designed to achieve a compromise between FAT32 and NTFS. It has the portability of FAT32 and does not need to consume too much performance and memory to process file operations. There are also CAL access control mechanisms similar to NTFS, and Free Space Bitmap similar to HPFS systems that can quickly organize available cluster space to minimize file fragmentation. However, it is difficult to objectively compare the file fragmentation situation when using FAT32, NTFS and exFAT. What is left to test is the access performance, especially the largest cluster size of exFAT reaches an astonishing 32MB. NTFS is only 64KB. If a flash drive is really used to store BD Remux files that can easily exceed GB, then how much performance improvement will there be when enlarging the exFAT cluster size? exFAT (Extended File Allocation Table) is a new format suitable for flash drives or portable devices (such as PDAs). It first appeared in WinCE 6.0 in 2006. In order to improve compatibility with desktop operating systems and facilitate portable devices Synchronization requirements were officially included in the file system supported by the desktop operating system in Vista SP1, but what is closely related to the average player is the application on the USB flash drive. [3]

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