This is a format created in the Acorn Draw program, intended for image visualization by using vector lines. It’s used for storing information in the publishing business (brochures, logotypes, etc.). The main advantage is it’s high quality source images when printing. It’s been in use since 1980.
This is a vector image created in the Adobe Illustrator program. It consists of lines that connect points; it’s used in SMI and during the creation of logotypes. They can be increased without lose of quality since they don’t contain raster image data. AI consists of a header, identifier strings and graphics objects. It functions to present graphical images in EPS format.