What is the file structure of GIF?

What is the file structure of GIF?

- GIF file has fixed size graphical area.

- It contains one or more images.

- Every image can be animated by placing them in animation frames.

- Every part of GIF file is a frame.

- All such frames make the complete graphical area or logical screen.

- Every file starts with a fixed length header.

- Every logical area consists of an image, the extension block and the trailer that is referred as the last byte of the file.