AIDS stands for Acquired Immune Deficiency Syndrome: 1  Acquired means you can get infected with it; 2  Immune Deficiency means a weakness in the body's system that fights diseases. 3  Syndrome means a group of health problems that make up a disease.
Vector animation is a term used to refer to animation in which the art or motion is controlled by vectors rather than pixels. Vector animation often allows cleaner, smoother animation because images are displayed and resized using mathematical values instead of stored pixel values.
All vectors must be converted to raster for web use. Text is typically rendered in vector format. If you're not sure whether you should create a raster or vector file, follow this simple rule of thumb: If you're drawing something from scratch with only a few colors, go with vector. If you're editing a photo with multiple colors, go with raster.