Storage is similar to memory in that both are used to retain information. Storagedevices usemagnetic or optical means to retain data where memory uses an electroniccircuit.
They are non-volatile, which means they do not lose the information theycontain when they are powered off. They have greater capacity but are muchslower than memory devices.
Floppy Disks, Hard Disks and Tapes all store information magnetically. CDs andDVDs retain information optically. Storage is used to retain importantinformation like programs (software) and data files.