secondary storage

secondary storage

1. MAGNETIC STORAGE

   • high capity(stores a lot of data)
     • data is stored by magnetising the surface of flat,circular plates called platters
       • platters role at a high speed
     • stores a lot of data
   • DISADVANTAGE:not as durable due to moving parts and read/write data slower in comparision to a solid state.
   • ADVANTAGE:cost effective due to having a larger capacity than a solid state

2. optical

   • ADVANTAVE:very cheap
   • ADVABNTAGE:very portable
   • Disadvantage:not very durable
   • disadvantage:limited amount of capisity

3. SOLID STATE

   • ADVANTAGE:more durable and can read and write much faster than magnetic storace
   • DISADVANTAGE:lest cost effictive in comparision to magnetic because it has a small casipity