Secondary storage

Secondary storage

1. Optical

   • speed 50 mbps
   • It is not portable
   • It will degrade over time for durabillity
   • Optical storage is the storage of data on an optically readable storage devices. Data is recorded by making marks in a pattern that can be read back by the of light, usually a beam of light focused on a spinning disc.

2. Magnetic

   • Magnetic storage is one of the most affordable ways to store large amounts of data and has been using magnetic tape, floppy disks and hard disk drives
     • The price of magnetic storage ranges from 3Tb for £85
     • it goes 3Gbps

3. Solid state

   • A solid-state drive is a solid-state storage device that uses built in circuits as memory to store data. SSD technology uses electronic devices with traditional block input/output hard disk drives.
   • Its portable most of the time because its things like flash memory