What is 16:9? 16:9 can be a 1920 by 1080 screen that displays 1080p which is the highest revolution yet.


What is a Vector? A vector is a way to describe a way images are created, like for example a billboard image normally uses Vectors. This is because vectors can add pixels to make image the same when enlarged, allowing high revolution. A vector is most likely when printing large items, such as bill boards, giant posters.


What is a Raster? A Raster is a way to describe a way a image is created, the difference between a vector and a raster is the way it expands. With Raster the pixels expand keeping the same amount of pixels creating a pixelated look. A Raster is used when you are producing a file that is either already pixerlated, or when you are producing computer images that are going to be viewed on a screen where it isn't great quality in the first place, so it is used when people are creating images for a website that is going to be viewed on all screens.