Floppy Disc

Floppy disc is an example for porttable memory device.
In floppy disc, a circular film is enclosed inside a plastic coating.

The memory capacity of a floppy disc is 1.44 MB

It has a write protected head, to protect from unwanted editings.
If the wite protected head is on, we can't perform writing into it.

 

 

 

The main advantage of this is portability.