Storage Devices

Storage Devices

1. Optical

   • Disadvantages
     • Worms are permanent
     • optical storage is expensive in gb and tb
     • Disks need special drives
   • Advantages
     • Memory retained when the power is turned off
     • Optical media,depending on which optical storage you use,can last a very long time with proper care
   • Examples
     • DVDs,CDs,Blu rays,worm,RDX

2. Purpose

   • What do we use storage for then?
     • Storing data,(files etc)permanently
       • Such storage,many WOW

3. Solid state

   • Disadvantages
     • very Expensive
     • Shorter lifespan
     • Limited storage
   • Advantages
     • low power consumption
     • very Durable
     • Compact
   • Examples
     • Laptops,pcs,phones,tablets,computers,consoles

4. Magnetic

   • Advantages
     • Capacaty
     • Cost
     • Persistance
   • Examples
     • Hard drive,Fixed hard drives,portable hard drive,magnetic tape
   • Disadvantages
     • very Slow
     • Regular crashes can lead to damage
     • Disk is fixed inside of the computer and cant be easily transfered

5. Why do we need storage devices?

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