Storage

Storage

1. Hard Disks

   • Day to day storage on pc systems, extremely reliable and robust

2. Floppy Disk

   • small storage space, easily damaged and not very reliable, hardly used anymore

3. DAT tapes

   • small in size but hold a lot of data, used to back up servers, slow to write to

4. Optical Storage

   • CD-ROM
     • Read Only
   • CD-R
     • Write once, then read only
   • CD-RW
     • Read and write as many times

5. Flash memory

   • portable device, small in size, transfers data between machines, plugged into USB drive

6. Online Storage

   • transfers data over internet connections, also known as "the cloud"

7. Choosing Storage device

   • Volume
   • Reason
   • needs to be rewritten?
   • Speed of recovery
   • Size of device