3. main memory. Main memory is responsible for storing information and programs that will make the CPU run using main memory with micro computer divided into 2 sections with a ROM.- RAM (Random access memory)Programs and data stored in RAM is erased. - ROM (Read - 0nly memory) Data cannot be deleted, even if they are shut down.4. memory backup. Memory backup Are obliged to store data and programs as users want. If this is activated when any data from the backup memory, main memory, that is, b so that the processor is working to. This type of memory if your computer is turned off or a power failure, the data remain lost. Memory backup in the computer system.
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