Secondary storage

Secondary storage

1. Needed for permanent long term storage of programs and data

2. Non volatile

3. 3 types

   • Optical
     • DVD
     • CD
     • Slowest
   • Magnetic
     • Slower than SSD
     • Can have a larger and cheaper capacity
     • Not durable
   • SSD
     • Fastest form of storage
     • Expensive for higher capacities
     • Most durable and reliable

4. 6 Characteristics

   • Portability
     • Can be taken out and replaced and swapped out
     • Can be transported
   • Speed
     • Slower than primary storage

5. Higher capacity than primary storage