Volatile - Memory that looses it content when there is no power., Non-Volatile - Memory that retains its content, when it has no power., Random Access Memory - The main memory of a computer, Read Only Memory - Memory that can be read but not written., Primary Storage - Memory that can be accessed directly by the CPU., Secondary Storage - Data storage used to store data so that the computer can be switched off., Hard Disk Drive - Secondary storage that magnetises sections of a disk., Solid State Drive - Storage that has no moving parts., Optical Disk - CD, DVD or Blu-ray, disc that is read/written to with lasers., Capacity - Size of Data., Portability - Data can be moved from one device to another., Cost - The amount you paid., Reliability - Whether the data can be saved as expected., Speed - How quickly can data be transferred to and from the medium.,

9.2.6 Primary and Secondary Storage

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