how many types hard disk drives
ram
Floppy drive and hard drive are two types of backing storage devices.
it completely depends on the size of the one you bought, how many gb?
The IDE hard drive is stored in the hard-drive bay of a computer case by screwing it on. This bay also houses SATA and other types of hard drives.
There are many types of software that can be used to encrypt a hard drive. One would be likely to use a program such as GNU Privacy Guard since it is a popular software.
hard drive RAM ROM CD drive Floppy disk
sata (newer) or EIDE (older)
There are many hard drive manufacturers. Seagate is a best solution.
software
47 drive types http://www.nextlev.com/Systems/bios.htm
No volts need a hard drive. However hard drives need a voltage. Usually about 5 for the data more for the physical movement of the drive.
The PlayStation 3 is not designed to work without a hard drive. When the hard drive is worn out after many rewrites, the PlayStation 3 will no longer function and the hard drive should be replaced.