An instant camera is a camera fitted with internal development mechanisms and self-developing film. This film allows you to access images seconds after you take the photo and includes all of the chemicals that you need to develop the film once you shoot it.
Why are instant cameras popular? The introduction of instant camera technologies was important to society because it allowed for more creativity among camera users. Instead of having to use a darkroom to develop photographs, users were able to explore and document their world and experiences as they occurred.