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MEMORY - Coggle Diagram

- - - - SRAM (static RAM)
        
        chips do not have to bereeergized.
      - DRAM (dynamic RAM)
        
        chips must be reenergized constantly
      - MRAM (magnetoresistive RAM)
        
        stores data using magnetic charges instead of electrical charges.
  - - - PROM (programmable ROM)
        
        a blank ROM chip which allows programmer to write permanently.
      - EPROM (erasable progammable ROM)
        
        allow programmer to erase the contents by exposing to ultraviolet light.
      - EEPROM (electrically erasable programmable ROM)
        
        allow programmer to erase the contents with an electrical signal.
- - - - read-only memory (ROM)
      - flash memory
      - CMOS