Vectors are solid images

Raster image

A raster image is an arrangement of dots or color squares that make up an image, commonly called pixels. The drawback of raster images, if enlarged the resolution will not be perfect. As well as when it will be printed, the results are definitely less than perfect.

Raster image convert to vector

To get perfect results, raster images are usually re-traced and then converted to vector form. The advantage of vector images, if enlarged or reduced the results will still be perfect. Vector images are very different from raster images, vectors are solid images unlike pixels. Therefore vector images are widely used for logo designs or other graphic designs.

Vector image without color

There are also vector images without color, designs like this are widely used to be readable on special machines, such as sticker cutting machines, CNC machines, or for manual book illustrations.

This is a short explanation in my opinion, so I can know where the difference is and how to use it. This is where I started everything and love graphic design, what do you think?