Secondary Storage

Secondary Storage

1. Devices that store data permanently unless you delete it. Secondary storage is non-volatile.

2. Optical storage

   • Disadvantages
     • An optical devices has a slower read and write speed than solid state dive, which means that programs will load slower.
     • Its also less durable compared to both magnetic and solid state devices as it can scratch really esily so the computer wont be able to read it.
     • Has a limited capacity compared to magnetic and solids, which means theres less space for data to be stored.
   • Advantages
     • Optical devices are more portable than solid states and magnetic devices. Therefore the device can be used on other devices.
   • examples
     • CD
     • DVD
     • Blu-Ray

3. Solid State

   • Advantages
     • It has no moving parts so therefore its more durable and reliable.
     • The read/write speed is quicker than both magnetic and optical therefore the device will be quicker in accessing data.
   • Less cost effective because it doesn't have as much capacity as the other types of secondary storage but still the price is higher.
   • examples
     • phone
     • tablet
     • laptop/desktop

4. Magnetic Storage

   • Disadvantages
     • It isnt as durable as soldid state as it has moving parts so therefore it wont last as long.
     • Also its read/write speed is slowe aswell which means data will ttake longer to be accessed and decoded.
   • advantages
     • Its cost effective as its capacity is really large and the cost is very reasonable therefore it will be more acessable for more people.