Storage

• RAM(Random Access Memory) is immediately available to the CPU immediately while processing is taking place. It also holds processed data that is waiting to be output or stored in a secondary storage device.
• RAM is volatile.
• ROM(Read only Memory) is a chip that holds data and instructions necessary for starting up the computer when it is switched on. Data can only be read from ROM chips.
• ROM is non-volatile.
• Primary storage is made up of RAM and ROM and is known as semi-permanent memory. Data can be read from primary storage quickly
• Static RAM is used in cache memory.
• Dynamic RAM is used in the main memory.
• PROM 


  A type of ROM that can only be written once.
• EPROM


  A type of ROM that can be erased and reprogrammed by exposing the chip to UV Light.
• EEPROM


  A type of ROM that can be reprogrammed repeatedly by exposing the chip to an electrical charge.
• Secondary storage, also called backup storage is used to store data and instructions when they are not being processed.
• Secondary storage is more permanent than primary storage since data and instructions are retained when the power is turned off
• Magnetic storage


  Storing data on a magnetized device such as magnetic tapes and disks.
• Optical Storage 


  Any type of storage where data is written and read with a laser.
• Flash memory storage


  A type of non-volatile memory that retains data even when the power is off.
• Cloud storage is a cloud computing model in which data is stored, maintained, managed and backed up on remote servers accessed from the internet.
• Block storage


  Technology for storing data I'm storage environments based on cloud or storage data networks.
• File storage

  A method for storing data in the cloud that allows multiple users to access the same file data
• Object storage

  A type of storage that saves large amounts of unstructured data in the cloud.
• Storage is the media used by a computer or mobile device to keep data, information and instructions for immediate or later use.