None!
Or you can take all disks out or they can be broken
So always back your work up!!!
In the computer's HARD
A storage device is any computer hardware meant to store data permanently or semi-permanently. This includes, but is not limited to hard disks, floppy disks, cdroms and DVDs.
access to ram is a lot faster for your computer
CD-R
in a hard drive
The storage component of your computer, where all your files and operating system are stored.
Temporarily DATA is stored in Primary Memory (RAM - Volatile in nature). Permanently DATA is written to Secondary Memory Storage Devices (HDDs, Optical Disks - Non Volatile in nature).
Stand alone computer
Floppy disks are not normally used on computers anymore, they are an obsolete media.
The drive where your computer stores information permanently is known as a hard disk drive, or HDD for short.
Computer disks are not volatile. Only RAM is.
It's the same as Removable storage.It must be physically inserted into a system every time a user wants to access or edit data. Offline storage can be any type of internal or external storage that can easily be removed from the computer. The data stored in offline storage remains permanently in the storage device even if it's disconnected or unplugged from the computer after the data has been stored. Offline storage is generally portable in nature and can be used on different computer systems. Common examples of offline storage include floppy disks, compact disks and USB sticks.