Different types of computer storage
A CD is used to keep music files and can hold many songs.
A digital camera is used to take pictures and most cards on the camera hold about 200 pictures.
A floppy disk is an older storage device and doesnt hold much data.. about 4 word documents.
Memory cards are used in phones and cameras and the least amount of storage is 8GB and the highest that i know is 36GB
A USB is the most used storage device by me. I use this everyday and it is usally 8 GB.