What does FAT mean in file systems in operating systems?

Created: Nov 14, 2019 02:03:31Latest reply: Nov 14, 2019 04:14:43 87 4 0 0
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Hi, can someone explain FAT in file systems in operating systems, thanks?

  • x
  • convention:

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little_fish
Admin Created Nov 14, 2019 02:12:07 Helpful(1) Helpful(1)

Hello,
FAT stands for File Allocation Table. It was a series of file systems created by Microsoft that are still in use today on legacy systems and flash drives.

There is FAT, then FAT12, followed by FAT16 and FAT32, and finally exFAT, FAT+.

FAT was created around 1977 and used an 8-bit file structure. As you might guess, the later versions extended the file structure to 12 (1980), 16 (1984), and 32 bits (1996), and exFAT is a major reworking of the design introduced in 2006. Windows 3.x and early versions of Win95 used FAT16, but FAT32 was introduced with Win95 OSR2 and carried forward as the default file system in Win98, 98se and Me.

There are limitations in what any form of FAT can do, which is why modern Microsoft systems use a newer file system called NTFS, which was developed for NT kernel versions of Windows. However, FAT32 and exFAT are very useful on thumb drives, and can still even be used on hard drives if you wish.

You can see Huawei Kunlun server here https://e.huawei.com/en/products/servers/mc-server/kunlun
  • x
  • convention:

Phany
Phany Created Nov 14, 2019 05:56:12
thanks.  
All Answers
little_fish
little_fish Admin Created Nov 14, 2019 02:12:07 Helpful(1) Helpful(1)

Hello,
FAT stands for File Allocation Table. It was a series of file systems created by Microsoft that are still in use today on legacy systems and flash drives.

There is FAT, then FAT12, followed by FAT16 and FAT32, and finally exFAT, FAT+.

FAT was created around 1977 and used an 8-bit file structure. As you might guess, the later versions extended the file structure to 12 (1980), 16 (1984), and 32 bits (1996), and exFAT is a major reworking of the design introduced in 2006. Windows 3.x and early versions of Win95 used FAT16, but FAT32 was introduced with Win95 OSR2 and carried forward as the default file system in Win98, 98se and Me.

There are limitations in what any form of FAT can do, which is why modern Microsoft systems use a newer file system called NTFS, which was developed for NT kernel versions of Windows. However, FAT32 and exFAT are very useful on thumb drives, and can still even be used on hard drives if you wish.

You can see Huawei Kunlun server here https://e.huawei.com/en/products/servers/mc-server/kunlun
  • x
  • convention:

Phany
Phany Created Nov 14, 2019 05:56:12
thanks.  
Peterhof
Peterhof Created Nov 14, 2019 04:14:43 Helpful(0) Helpful(0)

Hello!
One of the most important thing that you can't do in the FAT file system is that you can not set file and folder permissions for the users.
  • x
  • convention:

Phany
Phany Created Nov 14, 2019 05:59:14
Indeed, such as Windows or DOS, do not understand permissions. It is only tolerable on a single-user system.  
I%20am%20an%20IT%20engineer%20in%20the%20State%20Museum%20Reserve%20Peterhof.%20My%20job%20is%20keeping%20alive%20our%20network%2C%20servers%20and%20storages%20solutions%20and%20also%20preparing%20for%20purchasing%20new%20equipment%20and%20server%20software.

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