Neither a DVD nor a CD would be affected by magnetic fields, because the information is digitally encoded using optical media.
a cd
A DVD. Apex.
A credit card
Storage device
output
storage is store a data , device is drive (data drive) eg harddisk pendrive.
Secondary Storage
The Device we can used to store data by the Computer,it is know as Storage Device.
As far as I know, no storage device is an input device but data can be inputted on to it. Unless a program is running from a storage device and transfers data to another then it might be considered an input device but that's it.
A data storage device is a device used for storing various forms of information. Some typical forms of data storage devices include CDs, DVDs, sim cards, memory cards, and USB flash drives.
ram
A free online data storage device available to use is the "Cloud" network. Another online data storage device available for download for free is "DropBox".