Storage Devices

Storage Devices

1. Optical

   • Advantages
     • Smaller
     • Carries more
     • Greater Bandwidth and faster speed
     • Thinner and light waited
     • Less signal degradation
     • Longer life spam
   • Disadvantages
     • Low power
     • Limited application
       • compact disk,RDX,DVD.
     • Fragility
     • Distance
     • Very fragile

2. Purpose

   • What do we use storage for
     • Storing data[files,operating system,applications].

3. Solid State

   • Disadvantages
     • Lifespan
     • limited storage
       • Poor availability
         • Expensive
           • Capacity
   • Advantages
     • Fast
     • Durable
     • Low power consumption
     • No noise while in operation
     • No mechanical parts
     • Low power consumption
   • Example-USB Memory,Memory cards and others.

4. Magnetic

   • Disadvantages
     • Slow data accessibility
     • Presents of inter record
   • Advantages
     • Keeps track of permanent information
     • Can store thousands of gigabytes of information
     • Can wound itself up
     • Utilises limited amount of space
     • Does not cost much
     • High speed disk
     • Longer life span
     • Hard disk , floppy disk, Magnetic tape.