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