Secondary storage

Secondary storage

1. it is non-volatile storage. It is needed in a computer system to store your programs operating system and files

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

2. Optical storage

   • Example: DVDs
   • Examples: CDs
   • Example: Blue-Rays
   • Cost effective compared to solid state. Therefore, we are not spending all of our money on optical storage.
   • Not very durable compared to solid state storage. Therefore,it can break much faster.
   • More portable compared to solid state and magnetic. Therefore, we could put optical storage in laptops, computer etc.
   • Has a limited capacity compared to magnetic. Therefore, less files and programs will be saved.

3. Magnetic storage

   • Hard drive
   • Higher capacity compared to solid state.Therefore, it can save more files and programs
   • Not as durable compared to solid stare. Therefore, it is most likely to break.
   • Cost effective compared to solid state.Therefore, you are not spending as much money on magnetic comapred to solid state.
   • Slower read/write speed compared to solid state. Therefore, when it is loading and saving data much slower.

4. Solid state

   • Hard drive
   • USB drive
   • Faster read/write speed compared to magnetic storage.Therefore,it is loading and saving data much faster.
   • It is not cost effective compared to magnetic storage.Therefore, we are spending most of our money on solid state.
   • Durable compared to solid state and magnetic. Therefore,when we drop a solid state, it will not break that easily.
   • It has a lower capacity compared to magnetic. Therefore, it cannot save many files and programs.