Friday, 28 November 2008

Common file types used for interactive applications.

GIF - Image File - graphic in GIF format - open in web browser or graphics program.
GIF is a favoured file in the creation of logos or where a sharp clean edge or lines is required as there is no loss in resolution or file compression. GIF uses 256 colours which is adequate for logos etc.

JPEG - Image File - Graphic in JPEG format (Joint Photographic Experts Group) View with web browser or image editing program.

SWF - Media - Macromedia Shockwave Flash animation movie. SWF files are played in Adobe Flash Player either in a web browser on a site or a stand alone player. There are a few different software programs used to create SWF movies on including the most popular Easy Flashmaker but others are available including Anysoft and SWF Image Creator.

FLA - Media - Macromedia Flash animation file - requires Shockwave.

PPT (Powerpoint Presentation) - Application - Microsoft PowerPoint file - used for creating slides and overhead presentations. These files can be viewed in Microsoft Office, Star Office and now Google documents. Production would be done on Microsoft Power Point.

PPTX - Application - New format for MS Office documents, a combination of XML architecture and ZIP compression for size reduction.

QT - Quicktime movie - Also, SDP stream descriptor file viewed via a Quicktime plug-in.

HTML - Text file - hypertext document [same as .html] - opens in a web browser - edit in any word-processor or text editor. Implemented in authoring software similar to CSS below.

CSS (Cascading Style Sheets)- Style Sheet - plain text file containing web page style preferences.
CSS is a side software to HTML used to add style such as colour, fonts or spacing to web pages. It is viewed through many web browsers and used in numerous web authoring tools such as Notepad++, Adobe GoLive CS2, Macrabbit’s CSSEdit or Panic’s Coda.

EXE - Application - self-extracting or executable file - run by double-clicking in Windows.
EXE is one of the most well known file extensions, it indicates an executable file or a program.

MP3 - Audio - Audio file in MP3 format - CD-quality sound, with 10x compression.
MP3 is the most well known and widely used file extension as it is used by a huge percentage of the population to play music files on digital audio players. These include Windows Media Player and WinAmp which work on your computer or the files can be downloaded onto a mp3 player and listened to using headphones or a docking device.

MPEG4 - Media -a collection of methods defining compression of audio and visual (AV) digital data.
MPEG4 is the digital media standard for delivering high quality video and audio streams on a vast range of bandwidths, from mobile phones to broadband.

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