There are presentations and presentations. This one happens to do one a little better for learning to file types.
I've always been fascinated by imagery.
There's a profusion of kids out there splashing red pixels all over each other war gaming.
It's interesting that pure equations in vector form give more cohesiveness and accuracy (resolution) in a final image.
The alternative, raster, is a patched composite of dpi dots per square inch pixels.
The summation of these is bound to present a more granular image in a presentation.
Adobe has been instrumental in development of certain file types for its illustrator suite.
There's nothing like a png or GIF to illustrate a visual work and bring it to life.
I have a preference for gifs. They are the best animated show you can get from a file type.
Raster files are much more flaw filled with missing pixel bits.
Called lossy they give less resolution.
Equation driven vector files are the files of choice for our work;
Their lossless quality is in far greater demand!
Learn your file types and apply them flawlessly. You'll learn much in the process.