File system of windows xp


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File system of windows xp

  1. 1. FILE SYSTEM<br />Of<br />WindowXP<br />Presented By<br />Ehtisham Ali<br />
  2. 2. Outline<br />1. Windows File system<br />2. Hardware Support<br />3. File Naming Convention<br />4. File Extensions<br />
  3. 3. Windows File System<br />Every Operating system has its own file system.<br />File System works as an interface between user and storage devices.<br />It is a record of addresses of files stored on a storage media.<br />It helps Operating System to retrieve required file whenever user asks for it.<br />
  4. 4. Windows File System (contd…)<br />Recommended File System for Window XP is NTFS<br />NTFS – New Technology file system<br />Other supported file systems:<br />FAT or FAT16 – File Allocation Table<br />FAT 32 <br />CDFS – Compact Disk File System<br />UDF – Universal Disk Format (for DVD’s)<br />
  5. 5. Hardware Support by File System<br />Hard disk support for FAT or FAT16 File System.<br />Block <br />65,535 Entries in Table<br />1 Entry = 1 Block*<br />1 Block* = 32 KB of Data<br />65,535 x 32 = 2097120 KB of Data (approx. 2GB)<br />Finally it means that FAT/FAT16 file system has a support for only upto<br />2 GB of Hard disk.<br />Block – It is a area of sector of hard disk where the data has to be written.<br />
  6. 6. File Naming Convention<br />File are generally named in two parts first one is file name for user and second is file extension used by operating system.<br />Resume.doc<br />In DOS based operating systems files are named in 8:3 format, which means the file name could have maximum 8 characters and extension is 3 characters long.<br />Now in windows users have the freedom of using large file names of maximum 255 characters and extensions could be 4 or more characters long.<br />
  7. 7. File Extensions<br />File extensions are the most important part of any file name since it tells operating system to which program the file is associated.<br />How to show file extensions in Window XP ?<br />Open “ Control Panel”<br />Open “ Folder Options”<br />Click on “ View” TAB<br />Look for “Hide extensions for known file types” and uncheck this box<br />Click “Ok” to apply settings<br />Now you will be able to see extensions for each of your file.<br />
  8. 8. Some Examples of File Extensions<br /> txt – Text document (Notepad)<br />jpg – Image File (Windows Picture and Fax Viewer)<br />doc – Microsoft Word 97-2003 File<br />mpg – Media File (Windows Media Player)<br />html – HTML File (Internet Explorer)<br />xlsx – Microsoft Excel 2007-2010 File<br />pdf – Adobe Acrobat File<br />ini – Windows System File<br />drv – Windows System File for drivers<br />vbs – Visual Basic Script File<br />Other Special File Extensions:<br />torrent – A torrent link File<br />gadget – Windows Vista/7 sidebar applications<br />flac – Audio files encoded by FLAC codec<br />
  9. 9. Thanks<br />