Secondary Storage.

Secondary Storage.

1. Optical

   • Disadvantages
     • Not very durable
     • Has a limited capacity
   • Advantages
     • Cost effective
     • Very portable
   • Examples
     • CDs, DVDs and blu-rays.

2. Solid State

   • Disadvantages
     • Less cost effective
     • Much smaller capacity
     • Limited read/write lifespan
   • Advantages
     • More durable
     • More energy efficient
     • Can read/write data faster
   • Examples
     • Phones, laptops, Gaming PCs and tablets

3. Magnetic

   • Disadvantages
     • Moving Parts
     • Reads/writes data slower
     • Not durable
   • Advantages
     • Cost affective
     • Larger capacity
   • Examples
     • PCs, desktops, computers, laptops, games consoles

4. Purpose

   • What do we use storage for?
     • Storing data (files, operation systems and applications). Permanently.