secondary storage

secondary storage

1. Its a non volatile storage.It is needed in the computer system to store the program,operating system and files

   • Non volitiale means that the data is not deleted when the computer is powered off

2. Optical storage

   • CD
   • DVD
   • BLUE RAY
   • It is portable (This means that you can take it anywhere
   • Its not very durable (this means that it has a higher chance of getting damiged /scratched)
   • Used for a movie or game

3. Magnetic storage

   • External hard drive
   • High capacity (stores a lot of data)
   • Magnetic hard drive
   • Slower read write speed in comparison to solid state storage
   • Used for storing files

4. Solid state (flash) storage

   • Playstation memory card
   • PC
   • It has a higher read/write speed.This means that it is faster than the magnetic storage.
   • On the other hand it has a much less capacity compared to the magnetic storage
   • used to store games and programs