FAT

Also known as VFAT

family of file systems originally developed by Microsoft

In the Vinony graph

Vinony's link graph records 1,454 inbound references to FAT, and connects out to NCR Corporation, MS-DOS and DR-DOS.

Vinony files it under 1977 software, Computer file systems and Disk file systems.

Vinony links it to 45 Wikipedia language editions.

Key facts

Developer s: Microsoft , NCR , SCP , IBM , Compaq , Digital Research , Novell , Caldera
Full name: File Allocation Table
Variants: 8-bit FAT, FAT12 , FAT16 , FAT16B , FAT32 , exFAT , FATX , FAT+
Introduced: 1977 ( 1977 ) with Standalone Disk BASIC-80
Partition ids: MBR / EBR : FAT12: Values in C-notation for hexadecimal numbers</span>"}]]}'>0x 01 e.a. (Extended Attribute) FAT16: Values in C-notation for hexadecimal numbers</span>"}]]}'>0x 04 0x06 0x0E e.a. FAT32: </span>"}]]}'>0x 0B 0x0C e.a. BDP : EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
Directory contents: Table
File allocation: Linked list
Bad blocks: Cluster tagging
Max volume size: FAT12: 32 MB (256 MB for 64 KB clusters) FAT16: 2 GB (4 GB for 64 KB clusters) FAT32: 2 TB (16 TB for 4 KB sectors )
Max file size: 4,294,967,295 bytes (4 GB − 1) with FAT16B and FAT32
Max number span no of files: FAT12: 4,068 for 8 KB clusters FAT16: 65,460 for 32 KB clusters FAT32: 268,173,300 for 32 KB clusters
Max filename length: 8.3 filename , or 255 UCS-2 characters when using LFN
Dates recorded: Modified date/time, creation date/time (DOS 7.0 and higher only), access date (only available with ACCDATE enabled), deletion date/time (only with DELWATCH 2)
Date range: 1980-01-01 to 2099-12-31 ( 2107-12-31 )
Date resolution: 2 seconds for last modified time, 2 seconds for creation time, 1 day for access date, 2 seconds for deletion time
Forks: Not natively
Attributes: Read-only, hidden, system, volume, directory, archive
Transparent compression: FAT12/FAT16: Per-volume, SuperStor , Stacker , DoubleSpace , DriveSpace FAT32: No

via Wikipedia infobox

Wikidata facts

Instance of: file system
Developer: Microsoft

Show 2 more facts

inception: 1977-00-00
Stack Exchange tag: stackoverflow.com/tags/fat

Sources (1)

wikidata.org

via Wikidata · CC0

Article · 中文

檔案配置表（英語：File Allocation Table，首字母縮略字：FAT），是一種由微軟發明並擁有部分專利的文件系統，供MS-DOS使用，也是所有非NT核心的Windows系统使用的檔案系統。 FAT文件系統考慮當時電腦效能有限，所以未被複雜化，因此幾乎所有個人電腦的作業系統都支持。這特性使它成為理想的軟碟和記憶卡檔案系統，也適合用作不同操作系统中的資料交流。但FAT有一個嚴重的缺點：當文件刪除後寫入新資料，FAT不會將檔案整理成完整片段再寫入，長期使用後會使檔案資料變得逐漸分散，而減慢了讀寫速度。碎片整理是一種解決方法，但必須經常磁碟重組來保持FAT文件系統的效率。

Abstract from DBpedia / Wikipedia · CC BY-SA