SECONDARY STORAGE

SECONDARY STORAGE

1. MAGNETIC HARD DRIVES

   • Stores data using magnetic media such as HDD and Floppy disks.
   • They have platters and a read/write head to check the magnetic properties of the platter
   • They have a high capacity and they are extremely cheap

2. It is not resistant as you could drop it or get it wet and it wouldn't be readable

3. SOLID STATE DRIVES

   • It stores data directly onto silicon microchips with an electrical charge
   • It is durable so we can use it for a long amount of time. It is also a lot faster than most secondary storage
     • They are very expensive and each storage location can only be written to a certain amount of times because as higher voltage has to be used each time to flash the block screen. An example is a USB stick

4. OPTICAL DISK DRIVES

   • Stores data by making marks in a pattern that can usually be read back with a beam of laser light
   • They are cheap in cost and it will still be readable if you drop it or get it wet
   • It has a slower access time compared to most other secondary devices