Data formats identify the structure of the data and contain information about the file format in which the data type is specified, as well as the structure, content and chronological sequence. Data formats can be transformed from one data format to another by means of data transformation. The data formats of data communication contain transmission-relevant parameters; the data formats of application-oriented data define media-specific parameters, such as for text, video or audio.
- The two data formats asynchronous and synchronous are basically used in data transmission. These formats use different mechanisms to synchronize the data source and data sink. In synchronous transmission, information is sent bit by bit or block by block. The beginning of a frame is marked by synchronization characters( SYN), the transmission is carried out by means of defined control characters or control frames, and the entire data block is secured with a checksum field( FCS) or a check sequence.
- In computer technology, data formats characterize the logical data structure in terms of structure and content. The data format determines the syntax and semantics of the data and how it is stored. The structure is based on program-relevant factors for storage and data exchange. The content depends on the file format and can be text or graphic, audio, animation or video oriented.