Differentiate Fat Fat32 And Ntfs Information Technology Essay

Differentiate Fat Fat32 And Ntfs In instituteation engineering science EssayIn this term paper I have introduced the plank, plank32 and NTFS polar bill strategy . It includes features of FAT 32 and NTFS. At last there is comparison between FAT32 and NTFS.INTRODUCTION-FAT-FAT means file all(a)ocation gameboard used by the in operation(p) system for locating files on a disk, a file can be divided into many parts due to fragmentation that is lost around the disk. The render Allocation tabulate keeps track of group of all these pieces. File Allocation circuit board is a group of addresses that reach in the form of a table to see which meet is coming next, when a file is accessed or a directory is scanned.In DOS, FAT is stored after the flower sector. The older versions of FAT for Windows 95 and earlier is called FAT16, and for new versions of Windows 98 and 95 is called FAT32.Terminology-FAT stands for File Allocation Tables, a data twist that is found in all FAT volumes. FAT1 It is the first thing to see in FAT.FAT2 The 1st copy that is used by the FAT.FAT12 File Allocation Table file systems uses 12-bits clustered addresses.FAT16 File Allocation Table file systems uses 16-bit clustered address.FAT32 File Allocation Table file systems uses 32-bit clustered address..FATxx File system that use File Allocation Table and all that is used by FAT.VFAT It is the 32-bit code used for operation the file system in Win9x Graphical User Interface mode.Cluster It is the Single whole for storage of data on the FATxx file systems. celestial sphere It is the unit of storage devices at the physical level of disk.Physical sector address It refers to Sector addresses at absolute physical hardwargon terms.CHS sector address mode As above, expressed in Cylinder, Head etcLogical sector address It is a Sector address which is relative to the FATxx volume.Folder It is a collection of items named as seen with the help of Windows Explorer.File Folder It resembles the same as windows call it directory.Directory It is a data structure that lists file and directory.Directory entry It generally points to a file or directory, and contains the information about it.Attributes It refers to the collection of bits in a directory entries that mention it.File Allocation Table is the entries list which is mapped to each and every cluster at the time of partition. The partition is further divided up into identically sizingd clusters, small block of space. The size of cluster varies depending on the type of FAT fileEach entry contains records of one of five thingsthe cluster numbering of the coming cluster in a sequencea special end of chain cluster (EOC) entry that points to the end of a chaina special entry for marking a bad clusteringa special entry for marking a reserved clustera zero to note that the cluster on which we ar working is unusedFAT entry valuesFAT12FAT16FAT32Description0x0000x00000x0000000Free Cluster0x0010x00010x0000001Reserved value do not use0x00 2-0xFEF0x0002-0xFFEF0x0000002-0x0FFFFEFUsed cluster value points to next cluster0xFF0-0xFF60xFFF0-0xFFF60x0FFFFF0-0x0FFFFF6Reserved values do not use.0xFF70xFFF70x0FFFFF7Bad sector in cluster or reserved cluster0xFF8-0xFFF0xFFF8-0xFFFF0x0FFFFF8-0x0FFFFFF coda cluster in file (EOC)File System Structure-The File Allocation Table volume has been divided into different four areasThe boot record- It is the first and the starting sector of a FAT12 or FAT16 volume. It gives us the definition of the volume that we are using, as well as for the other remaining iii areas. If the volume is made bootable, then the very first record exit also contains the code required to enter the file system and for the purpose to boot the Operating System.The File Allocation Tables- It is a address that can be reached as a lookup table to check which cluster comes next, when a file is load or scanning a directory. Because the File Allocation Table is such a important data structure, there are typically two copies (i.e. FAT1 and FAT2) so that corruption of the File Allocation Table i.e. FAT can be detected and intelligently repaired.The root directory- It fixed in length and is incessantly located at the starting of the volume (after the FAT) in FAT12 and FAT16 volumes, but FAT32 treats the root directory as just another cluster chain in the data area. However, as yet in FAT32 volume, the root directory will automatically follow immediately after the two FATs.The data area- It fills the remaining part of the volume, and is divided into many clusters it is completely here that the file data is stored. Subdirectories are the very special files with a structure that can be easily understood by the file system, and is pronounced as directories rather than files by setting the directory attribute bit on the directory entry that always points to it.FAT32-The FAT32 file system is that one which was originally introduced in Windows 95 Service Pack 2, which is really just an extension of th e original FAT16 file system that provides a much larger number of clusters per partition as compared to others. As such, it helps greatly in improving the overall disk utilization when it compared to a FAT16 file system. However, FAT32 shares all of the other limitations of FAT16, and adds an vital additional limitation-many direct systems that recognize FAT16 will not work with FAT32-most probably Windows NT, but also Linux, UNIX etc as well. Now this is not the problem if we running FAT32 on a Windows XP computer and sharing our scram out to other computers on our network-we dont need to know (and generally dont really care) what our underlying file system is.Features-FAT32 supports drives up to 2 terabytes in size.FAT32 uses space more efficiently as compared to others.FAT32 is more robust. FAT32 can be used to relocate the root folder and use the backup copy of the file allocation table instead of default copy.FAT32 is more flexible as compared to others. The root folder on a FAT32 drive is a cluster chain, so it can be used to locate anywhere on the drive. The previous flaws on the number of root folder entries no longer exist. Further, file allocation table observe can be disabled, allowing a copy of the file allocation table other than the first one to be active.NTFS-NTFS is define as New Technology File System .it is a file system that was introduced by Microsoft in 1993 with Windows NT. It supports hard drive sizes up to 256TB.It is the primary file system used in Microsoft Windows 7, Windows Vista, Windows XP, Windows 2000 and Windows NT operating systems. The Windows Server also primarily uses NTFS.NTFS has several advantages over FAT and HPFS (High Performance File System) such as improved support for metadata and the use of ripe data structures to improve performance, reliability, and disk space utilization.The File Allocation Table (FAT) file system was the primary file system in Microsoft older operating systems but it is still supported t oday along with NTFS. It is more powerful and offers security advantages not found in the other file systems. There are normally three different file systems available in Windows XP FAT16 i.e.short for File Allocation Table, FAT32, and NTFS, short for NT File System.The NTFS file system is generally not supportable with other OS installed on the same computer, nor is it available when we have booted a computer from a floppy disk.Advantages of NTFS-It introduced the first version of Windows NT, which is totally different file system from FAT. It provides for highly increased security.If we have already upgraded to Windows XP and did not do the conversion then, it is not a problem. You can convert FAT16 or FAT32 volumes to NTFS at any point.NTFS Security Features-. File compressionEncrypting File System (EFS)NTFS Security and PermissionsHard links and short filenamesCOMPARISON -In FAT 32 operating system that are used is Windows 98 XP whereas operating system used in NTFS is Windows XP.These are much file system for hard drives. Each has its possess pros and cons. But FAT32 is preferred because it is easy to read and write to with a boot floppy. Windows XP comes with a conversion utility for FAT32 to NTFS called convert.exe. Only the operating system decide whether a partitions file system can be read or not .There are no security features in built-in FAT which was knowing in single user era whereas NTFS has many security features built into it making it the a file system for multi user operating system.BibliographY-.Operating system concepts by Gill n SmithA fundamental aaproach to Operating System by Jain and Iyer