Secondary storage

Secondary storage

1. Data is stored permanently unless you delete the data yourself.Therefor the data will be saved and wont be needed to be done again.

2. Secondary storage is non-volatile storage.Its needed in a computer system to store your programs,operating systems and files.

   • Non-volatile means that the data is not deleted when the computer system has no power to connect to it

3. Solids state change

   • USB flash drive
   • It is more expensive than magnetic and optical storage,therefor not many people are buying it compared to optical and magnetic.
   • It is faster at read/write speed compared to magnetic storage.There for it loads files and programs faster.

4. Magnetic storage

   • Magnetic tape.
     • Floppy disk.
   • If the data is stored near a strong magnetic field,the tape could be damaged.therefor it can be damaged or even brake very easily and you would have to be careful.
   • One of the best things about disk storage is the ability to fit so so much information in a small amount of space.

5. Optical storage

   • Its way cheaper than the solid state storage.Therefor its easier to have access to.
   • The shape of a disk makes the surface area easily get scratched/damaged.
   • CD
     • DVD