File formats. Each file has its own name. It consists of a file name and its extension, separated by the sign of (for example: photo.jpg). The file name can be selected by the user, or programmer, creating program. Extension (also sometimes referred to as the format), tightly linked to the type of file, and change is absolutely contraindicated.
The most common file formats: Archives: RAR – a file or group of files compressed with using RAR-compressed (has a higher compression ratio than ZIP). 'RAR' comes from 'Roshal ARchive' (the name of the developer – Eugene Roshal). ZIP – compressed file, use a ZIP-compression, is supported by most compression program. Windows users can create a ZIP-file, using, for example, the program WinZip. Video: AVI – video format file containing the data that can be encoded in different codecs. Uses less compression than similar formats. AVI files can be played by different players, but the player must support the codec used to encode the video.
The word codec – comes from the words to encode and decode. MPEG (MPG)-format for storing video and audio compression and data loss. MPEG4 (MP4) – film or video clip that has been compressed in MPEG-4 standard, commonly used to exchange and transfer video files online. This format uses separate compression for audio and video tracks. SWF – ShockWare Flash. SWF files created using the software Macromedia Flash. SWF format is also known as Flash Player. The format used to store vector graphics and animation clips that can contain sound. To view it uses Flash Player Player, and modern Web-browsers. Edit SWF-files can not be. Graphics: Continuation of the article: