Considered very important. If you do not have your computer's hard disk will not work because it lacks the main media used to store the recorded data of the computer.Compared large data archives of the computer.
It is very important If a hard drive, your computer will not function. Due to lack of mainstream media used to store information on your computer as a mass storage warehouse of computers.
Considered very important. If there is no hard disk, your computer will not be able to do the work. Because of the lack of mainstream media used to record the data of computer .A large store of the computer.