Greater the resolution, more space is needed to store the picture. You can ignore interpolated resolution figures stated by manufacturers. Interpolation is a process used by photo editing software in which a computer chooses an appropriate pixel color based on colors of surrounding pixels. This process allows enlarged photos to look smooth, even if they were made at lower resolution. However, it is not magic, so some details may be lost in the process.
Compression refers to shrinking of images' sizes so that they take up less space.
Some information is lost when the process of compression occurs, but with popular formats like JPEG, set an average compression level, it is hard for a human to notice any difference. Digital pictures can be printed on paper with a photo printer. Delay between shots is the amount of time in seconds before you are able to take another shot. Lower times are important when you need to take many shots in succession. Two storage options are built-in memory and removable storage.