Storage devices

Storage devices

1. Optical

   • Examples
     • CDs, DVDs and Blu-Rays
   • advantages
     • Portable
     • can be used in a variety of devices
     • cheap
   • disadvantages
     • can be easily scratched
     • low capacity
   • Is any storage method in which data is written and read with a laser. CDs, DVDs and Blu-Ray are examples of this type of storage.

2. solid state

   • Examples
     • phones, tablets and gaming PCs/laptops
   • advantages
     • high read write speed
     • energy efficient
     • more durable than magnetic
   • disadvantages
     • not as cost-effective
   • Uses microchips to store data instead of magnetised disks and do not contain any moving parts.

3. magnetic

   • examples
     • PC,desktop,computers, laptops and game consoles.
   • advantages
     • Cost-Affective
     • High Capacity
   • Disadvantages
     • Less durable than Solid State
   • Data is stored by magnetising the surface of flat, circular plates called platters. These platters rotate at a very high speed.

4. purpose

   • what do we use storage for?
     • storing data (files, operating system, applications.) Permanently

5. apacity