Memory

Memory Types:

• RAM
• Data memory
• Volatile
• Fast
• EEPROM / Flash
• Program memory
• Nonvolatile



From Wikipedia

• Slow
• Virtual memory
• The OS combines regions of the RAM + regions of the Hard disk, and provide virtual addressing for them as if they are contiguous, to be used as a RAM
• Have larger RAM, but slower
• Cache memory
• Faster than rams
• Data cache, contains the data that is accessed frequently
• Program cache, contains instructions that is being executed

Memory Management

• The OS is responsible for allocating/deallocating/moving the heap/stack of the different processes