memory is open right there, storage is something that is stored in the computer.Storage is still there even when the computer is turned off.optical is seeable stuff. optical storage uses light like laser.cd-rom-label on front,shiny reflection rainbow on back peice of plastic.theres a rainbow pattern because the light hits the cd and it refracts.one cd holds one mega bite of information.i megabite is 8 bits.a cd has 5 billion little pits,lacopits inside a cd rom.inside a cd-rom:printed circuit card,the tray where the volume switch is, little actuator that slides back and forth,laser in the middle,spindel that spins around when cd is in motion.if u damage the back of the cd the binary code can not be read. storage on a cd is saved by pits that bounce back and forth (saved in binary).the back of the circuit board is where the brain is located.
floppy disk
did you know why its called that because the inside is floppy.floppy disk is storage.1 and a half maga bites.floppy disk uses magnetic electricity.magnetic field or electrical field will mess up the floppy.hard disks have platters. the actuator arm is what reads the informatin on the floppy disk.