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Presented by
T.Harshavardhan
1
A PRESENTATION ON
2
 A FILE IS PLACE TO STORE INFORMATION.
 THEREAREDIFFERENTTYPESOFFILESFORMATS
1. AUDIO
2. VIDEO
3. DOCUMENTS
4. IMAGES et...
4
 A string of characters attached to the file name, usually preceded by
a FULL STOP and its particular name
 A extension ...
Easy to recognize the file type by os
Means it knows which file it is and launch the
correct application to open that file...
 Data content specific
 Software application specific
 Algorithm specific
 Proprietary nature specific
7
8
Extension Description Application
.jpg , .png , .gif Graphics , Pictures Any graphics program
.bmp Bulky Graphics Paint or...
10
Extension Description Application
.dll Dynamic Link Library Used by softwares in a
variety of functions
.exe Executable...
 There are two different types of image files
Raster images:
 use many colored pixels or individual blocks.
 these are ...
Vector images:
 These are made by mathematical formulas instead
of using pixels
 These are original images and are perfe...
13
Pros:
• 24 bit color image, with up to 16
million colors.
• Most used and widely accepted image
format
• Compatible in ...
14
Pros:
• Support Transparency
• do small Animation effects
• Good for the Pictures having only 256 colors
Cons:
• It los...
15
Pros:
• works well with all windows OS
Cons:
• Does not scale or compress
• very Huge Files
16
Pros:
• Very Flexible Image
• High Quality Image
Cons:
• Very Large Size
• occupies huge disk space
• slow loading time
17
Pros:
• Lossless Image
• better than .tiff
• Supports transparency better than
.gif
Cons:
• Large Files
• can’t be Anim...
18
.mp3:
 Most commonly used audio file format
 It has the bit rate of 1411.2kbps to 112-128kbps
 Supported by any softwar...
.wav:
 Created by Microsoft and ibm
 Standard audio file from windows 95
.ra , .rm:
 Created by real networks
 Used fo...
 .AVI – Audio Video Interleave
 was developed by Microsoft
 The AVI format usually uses less compression than
some simi...
 .FLV or SWF – Flash Video
 It is a popular container format for streaming videos
across the internet
 it is not suppor...
 .MP4 – MPEG-4 Video File
 The MPEG-4 format is used to share files on the
web.
 Video and audio tracks are compressed
...
 .WMV – Windows Media Video
 developed by Microsoft
 WMV includes support for high definition 720
and 1080 resolution
...
.pdf: Portable Document File
 developed by adobe
 Opens in pdf readers
 captures all the elements of a printed document...
.xls, .xlsx: spreadsheet
 Developed by Microsoft
 Opens in ms office excel
 Data inside all Office Document files are
s...
Miscellaneous formats:
.dll -dynamic link library-used by softwares for
linking different functions
.exe-executable file-r...
28
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file formats

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file formats

  1. 1. Presented by T.Harshavardhan 1
  2. 2. A PRESENTATION ON 2
  3. 3.  A FILE IS PLACE TO STORE INFORMATION.  THEREAREDIFFERENTTYPESOFFILESFORMATS 1. AUDIO 2. VIDEO 3. DOCUMENTS 4. IMAGES etc...,  THEREARE SO MANY DIFFERENTTYPES OF FILEEXTENSIONSTO DEFINE THE FORMATS LET US SEE WHAT ARE THIS FILE EXTENSIONS 3
  4. 4. 4
  5. 5.  A string of characters attached to the file name, usually preceded by a FULL STOP and its particular name  A extension can have maximum of 4 characters syntax Filename. File extension  In different os it takes different sizes 1. Windows 10 : 260 bytes 2. Windows 8 : 260 bytes 3. Windows 7 : 260 bytes 4. Windows xp : 255 bytes 5. Windows vista : 260 bytes 5
  6. 6. Easy to recognize the file type by os Means it knows which file it is and launch the correct application to open that file These extensions have special characters and numbers But there are hundreds of extensions from .a to .z. why? 6
  7. 7.  Data content specific  Software application specific  Algorithm specific  Proprietary nature specific 7
  8. 8. 8
  9. 9. Extension Description Application .jpg , .png , .gif Graphics , Pictures Any graphics program .bmp Bulky Graphics Paint or graphics program .doc , .docx Word processing file MS Office Word .xls , .xlsx Spreadsheet MS Office Excel .ppt , .pptx Powerpoint slideshow MS Office Powerpoint .txt Text file Notepad, word, text editor .pdf Portable Document File PDF reader softwares .htm , .html Web pages Viewed in browsers .wav , .mp3 , .avi , .wmv , .rm , .mpg , .swf Multimedia Multimedia Softwares 9
  10. 10. 10 Extension Description Application .dll Dynamic Link Library Used by softwares in a variety of functions .exe Executable File Run by OS .zip , .rar Compressed files 7 Zip , Winrar .js Java script file Executable script opened by browser .iso Container files Disk Creation softwares or archive programs
  11. 11.  There are two different types of image files Raster images:  use many colored pixels or individual blocks.  these are reduced version of original photos Ex: .jpeg, .png, .gif, .tiff etc…….. 11
  12. 12. Vector images:  These are made by mathematical formulas instead of using pixels  These are original images and are perfect in quality Ex: .ai(made by adobe) .eps(resizable images) 12
  13. 13. 13 Pros: • 24 bit color image, with up to 16 million colors. • Most used and widely accepted image format • Compatible in most OS Cons: • They discard lot of data • The picture will lose its originality • didn’t support Transparency • Can’t be animated
  14. 14. 14 Pros: • Support Transparency • do small Animation effects • Good for the Pictures having only 256 colors Cons: • It lose up to 99.998% of its color if it has more than 256 colors • It is the Oldest Format since 1989 and is not updated till now
  15. 15. 15 Pros: • works well with all windows OS Cons: • Does not scale or compress • very Huge Files
  16. 16. 16 Pros: • Very Flexible Image • High Quality Image Cons: • Very Large Size • occupies huge disk space • slow loading time
  17. 17. 17 Pros: • Lossless Image • better than .tiff • Supports transparency better than .gif Cons: • Large Files • can’t be Animated • All web browsers didn’t support .png
  18. 18. 18
  19. 19. .mp3:  Most commonly used audio file format  It has the bit rate of 1411.2kbps to 112-128kbps  Supported by any software .wma:  Created by Microsoft  Similar to mp3 but it has higher compression rate .ogg:  Similar to others but it is open, free and unpatented  It uses vorbis , a specific audio compression scheme 19
  20. 20. .wav:  Created by Microsoft and ibm  Standard audio file from windows 95 .ra , .rm:  Created by real networks  Used for streaming audio files and play in real time .midi:  Musical Instrument Digital Interface used by Electronic Music industry 20
  21. 21.  .AVI – Audio Video Interleave  was developed by Microsoft  The AVI format usually uses less compression than some similar formats and is a very popular format amongst internet users  Open with: Microsoft Windows Media Player, Apple QuickTime Player and VideoLAN VLC media player 21
  22. 22.  .FLV or SWF – Flash Video  It is a popular container format for streaming videos across the internet  it is not supported on iOS devices such as iPhones and iPods.  Open with: Web browsers with the Flash plugin installed and the Adobe Flash Player 22
  23. 23.  .MP4 – MPEG-4 Video File  The MPEG-4 format is used to share files on the web.  Video and audio tracks are compressed separately  It Expands MPEG-1 to support video/audio "objects", 3D content, low bit rate encoding and support for Digital Rights Management.  Open with: MP4 players and Apple QuickTime Player 23
  24. 24.  .WMV – Windows Media Video  developed by Microsoft  WMV includes support for high definition 720 and 1080 resolution  Open with: Web browsers with the Windows Media Player plug-in and Microsoft Windows Media Player 24
  25. 25. .pdf: Portable Document File  developed by adobe  Opens in pdf readers  captures all the elements of a printed document as an electronic image .doc, .docx: word processing file  Developed by Microsoft  Opens in ms office word  It stores formatted text, images, tables, graphs, charts, page formatting, and print setting 25
  26. 26. .xls, .xlsx: spreadsheet  Developed by Microsoft  Opens in ms office excel  Data inside all Office Document files are stored in series of fixed-size streams .ppt, .pptx:powerpoint slideshow  Developed by Microsoft  Opens in ms office powerpoint  All text images, sound and video used in the presentation are contained in the PPT file 26
  27. 27. Miscellaneous formats: .dll -dynamic link library-used by softwares for linking different functions .exe-executable file-run by os .zip, .rar-compressed file- run by 7zip,winrar .iso-container file for contents of optical disk- Disk creation software or archive programs 27
  28. 28. 28

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