1. File Format

2. Graphics file Format

3. GIF (Graphics Interchange Format) JPEG (Joint Photographic Experts Group) PNG (Portable Network Graphics) TIFF (Tag Image File format) BMP (Bitmap)

4. Graphic file Format GIF (Graphics Interchange Format) –cross-platform compatibility –developed by CompuServe as a common format for exchanging bitmapped images between different platforms –uses a lossless compression technique –restricted to 256 colours –not suitable for photographic images

5. Graphic file Format JPEG (Joint Photographic Experts Group) –JPEG is a compression technique –Joint Photographic Experts Group developed the compression technique –JPEG file is used to refer to what are correctly called - JPEG File Interchange Format (JFIF).

6. Graphic file Format PNG (Portable Network Graphics) –widely supported on the web –devised to supersede GIFs –GIF compression algorithm patented by Unisys –it is also lossless technique –not restricted to 256 colours –specification published in 1996 by W3C –http://www.libpng.org/pub/png/

7. Graphic file Format TIFF (Tag Image File format) –not for web –supported by most painting programs –can not be read by other programs –natively supported by Windows as is BMP.

8. Graphic file Format BMP (Bitmap) –not for web –Microsoft Windows Bitmap format

9. Vector Graphics file Format PostScript EPS (Encapsulated PostScript) SVG SWF (Shock Wave File)

10. Vector Graphics file Format PostScript –developed by Adobe in mid 80s –programming language with built-in graphic capabilities –page layout language rather than single image language

11. Vector Graphic file Format EPS –Encapsulated PostScript –most widely used vector graphics format –but a full PostScript interpreter is required to display EPS images

12. Vector Graphic file Format SVG –by W3C in 1999 –defined in XML (extensible Markup Language) –SVG is a derivative of PostScript –easier to implement –compact

13. Vector Graphic file Format SWF –by Macromedia in 1999 –for vector animations using Flash –is in wide use for vector images –highly compact format –can be rendered very quickly

14. Sound file Format

15. AIFF - for MacOS WAV (or Wave) - for windows AU - for Unix –WAV is the Audio WAVeform file format MP3 - MPEG-1 Audio Layer-3

16. Sound file Format Video and other multimedia formats can also accommodate sound. QuickTime and AVI files. SWF (Flash) files can also be used to store sound. QuickTime supports AIFF, WAV, AU, and MP3 file formats.

17. Sound file Format MIDI –Musical Instruments digital Interface

18. Sound and Picture file Format

19. AVI –AVI stands for Audio and Video Interleaved

20. Sound and Picture file Format MOV –movie object –file format for QuickTime by apple in 1991

21. Video file Format Links http://www.uwm.edu/People/price/video_file_format_comparison.html http://www.wikipedia.org/wiki/Video_file_formats http://www.geocities.com/cplarosa/video/vconvert.htm http://www.pbs.org/opb/crashcourse/digital_v_analog/mpeg2.html