Zonse Muyenera Kudziwa Zokhudza FAT32, exFAT, FAT16, & FAT12
Fayilo Yopatsa Mafomu (FAT) ndiwotayiliyake yomwe yapangidwa ndi Microsoft mu 1977.
FAT ikugwiritsabe ntchito lero monga mawonekedwe apamwamba mafeleti a diskippy media media ndi portable, zipangizo zamakono zosungiramo mphamvu monga magetsi ndi zipangizo zina zolimbitsa thupi monga makadi a SD.
FAT inali njira yaikulu ya mafayilo ogwiritsira ntchito machitidwe onse a Microsoft ogula ntchito kuchokera ku MS-DOS kupyolera mu Windows ME. Ngakhale kuti FAT akadali njira yothandizira pa machitidwe atsopano a Microsoft, NTFS ndiyo njira yoyamba mafayilo yomwe amagwiritsidwa ntchito masiku ano.
Fichi ya Allocation Table file ikuwona kupita patsogolo kwa nthawi chifukwa cha kufunika kokhala ndi ma diski akuluakulu ndi zazikulu zazikulu za mafayilo.
Nazi zambiri pamasulidwe osiyanasiyana a FAT mafayili:
FAT12 (Pepala la Kugawa Fayilo 12-bit)
Choyamba chomwe chinagwiritsidwa ntchito kwambiri pa FAT mafayilo, FAT12, chinayambika mu 1980, chimodzimodzi pamodzi ndi Mabaibulo oyambirira a DOS.
FAT12 inali njira yaikulu ya mafayilo opangira ma Microsoft kudzera mu MS-DOS 3.30 koma idagwiritsidwanso ntchito m'zinthu zambiri kudzera mu MS-DOS 4.0. FAT12 akadali mafayili omwe amagwiritsidwa ntchito pa disppy disk yomwe mumapeza lero.
FAT12 imathandizira kukula kwa magalimoto ndikupanga kukula kwa 16 MB pogwiritsa ntchito masango 4 KB kapena 32 MB pogwiritsa ntchito 8 KB omwe ali ndi chiwerengero chapamwamba cha maofesi 4,084 pamtundu umodzi (pogwiritsa ntchito masango 8KB).
Maina a fayilo pansi pa FAT12 sangathe kupitirira malire a chiwerengero cha anthu asanu ndi atatu, kuphatikizapo 3 pazowonjezereka .
Zambiri za ma fayilo zinayambitsidwa koyamba ku FAT12, kuphatikizapo zobisika , zowerengeka , dongosolo , ndi malemba .
Zindikirani: FAT8, yomwe inayambitsidwa mu 1977, inali yoyamba yeniyeni ya FAT mafayili koma sinagwiritsidwe ntchito pokhapokha pa machitidwe a makompyuta otsiriza a nthawiyo.
FAT16 (Pepala la Kugawa Fayilo 16-bit)
Kukhazikitsidwa kwachiwiri kwa FAT kunali FAT16, koyamba mu 1984 mu PC DOS 3.0 ndi MS-DOS 3.0.
FAT16 yowonjezera bwino, yotchedwa FAT16B, inali yoyamba mafayilo a MS-DOS 4.0 kupyolera mu MS-DOS 6.22. Kuyambira ndi MS-DOS 7.0 ndi Windows 95, njira yowonjezera yowonjezera, yotchedwa FAT16X, imagwiritsidwa ntchito m'malo mwake.
Malinga ndi machitidwe opangira ndi kukula kwa masango, masitepe opitirira maulendo angapo a FAT16 akhoza kupanga pakati pa 2 GB mpaka 16 GG, yomaliza mu Windows NT 4 ndi masamba 256 KB.
Mafayilo a fayilo pa FAT16 amayendetsa maulendo angapo pa 4 GB ndi Kuphatikizidwa Kwambiri kwa mafayilo , kapena 2 GB popanda izo.
Chiwerengero choposa cha maofesi omwe angathe kuchitika pa FAT16 ndi 65,536. Mofanana ndi FAT12, maina a fayilo anali ochepa kwa mafanizidwe 8 + 3 koma anawonjezera malemba 255 kuyambira ndi Mawindo 95.
Zotsatira za fayilo ya archive inayambitsidwa ku FAT16.
FAT32 (Pepala la Kugawa Fayilo 32-bit)
FAT32 ndiwotsiriza wa FAT mafoni. Inayambitsidwa mu 1996 kwa Windows 95 OSR2 / MS-DOS 7.1 ndipo inali yoyamba mafayilo machitidwe ogula Mabaibulo a Windows kudzera mu Windows ME.
FAT32 imathandiza kukula kwa magalimoto mpaka 2 TB kapena ngakhale 16 TB ndi masentimita 64 KB.
Mofanana ndi FAT16, ma fayilo pa ma FAT32 amayendetsa pamtunda pa 4 GB ndi Kuphatikizidwa Kwambiri kwa mafayilo kapena 2 GB popanda. FAT32 yomasulidwa, yotchedwa FAT32 + , imathandiza mafayili pafupi ndi 256 GB kukula kwake!
Maofesi opitirira 268,173,300 akhoza kukhala pamutu wa FAT32 malinga ngati akugwiritsa ntchito masango 32 KB.
exFAT (Ndondomeko Yowonjezera Mafayilo)
exFAT, yoyamba kufotokozedwa mu 2006, ndiyina mafayilo opangidwa ndi Microsoft ngakhale si "FATU" yotsatira pambuyo pa FAT32.
exFAT makamaka cholinga chake chigwiritsidwe ntchito pa zipangizo zamakono zojambulidwa ngati makina oyendetsa, makadi a SDHC ndi SDXC, ndi zina zotero.
ExFAT imathandizira movomerezeka zosungirako zosungiramo makanema mpaka 512 TiB kukula koma zolemba zimatha kuthandiza magalimoto akuluakulu monga 64 ZiB, omwe ndi aakulu kwambiri kuposa zofalitsa zilizonse zomwe zilipo monga izi.
Zothandizira zachikhalidwe zotsatsa maonekedwe 255 ndi chithandizo kwa maofesi oposa 2,796,202 pa bukhuli ndizo zigawo ziwiri zochititsa chidwi za dongosolo la exFAT.
Maofesi a exFAT amathandizidwa ndi pafupifupi mawindo onse a Windows (okalamba omwe amawasintha), Mac OS X (10.6.5+), komanso ma TV ambiri, ma TV, ndi zipangizo zina.
Kusuntha Files Kuyambira NTFS ku FAT Systems
Kulemba mafayilo , kufalitsa mafayilo , chinthu chololeza, disk quotas, ndi zikhozo zojambula zida zilipo pa chipangizo cha NTFS yekha - osati FAT . Zizindikiro zina, monga zowonjezera zomwe ndatchula muzokambirana pamwambapa, zimapezekanso pa NTFS.
Chifukwa cha kusiyana kwawo, ngati mutayika fayilo yoyimitsidwa kuchokera ku voliyumu ya NTFS kupita ku malo omwe FAT inapangidwira, fayilo imataya chikhalidwe chake, kutanthauza kuti fayilo ikhoza kugwiritsidwa ntchito monga fayilo yachibadwa, yosasindikizidwa. Kuwonetsa fayilo mwanjira iyi kungatheke kwa wogwiritsa ntchito oyambirira omwe adalembapo fayilo, kapena wina aliyense wogwiritsa ntchito chilolezo mwa mwiniwake.
Mofanana ndi mafayilo a encrypted, popeza FAT sichikuthandizira kupanikizika, fayilo yovomerezeka imachotsedwa mwachindunji ngati itulutsidwa kuchokera mu voliyumu ya NTFS ndikuyimba pa FAT. Mwachitsanzo, ngati mumasungira fayilo yovomerezeka kuchokera ku disk hard disk ya NTFS kupita ku floppy disk FAT, fayiloyo imangothamangitsidwa nthawi yomweyo isanayambe kusungidwa kwa floppy chifukwa FAT yafayilo yafayilo pazipangizo zamakono alibe mphamvu yosungira mafayilo ophatikizidwa .
Kuwerenga Kwambiri pa FAT
Ngakhale kuti pali njira yochuluka kuposa zokambirana za FAT pano, ngati mukufuna kudziwa zambiri zokhudza momwe FAT12, FAT16, ndi FAT32 zimayendetsera maofesiwa, yang'anani Maofesi a FAT ndi Andries E. Brouwer.