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THE DIFFERENCES by Mind Map: THE DIFFERENCES

1. SECONDARY MEMORY

1.1. EXTERNAL DEVICES

1.2. STORAGE IS PERMANENT

1.3. CHEAPER AND LARGER

1.4. STORAGES ARE SLOWER

1.5. CONNECTED THROUGH DATA CABLES TO CPU

2. MAIN MEMORY

2.1. HARD DISK

2.2. STORAGES ARE TEMPORARY

2.3. EXPENSIVE AND SMALLER

2.4. STORAGES ARE FASTER

2.5. CONNECTED THROUGH DATA BUSES TO CPU

3. VOLATILE

3.1. FAST

3.2. SYSTEM PERFORMANCE

3.3. PRIMARY

3.4. RAM

3.5. REQUIRES CONSTANT ELECTRICITY

3.6. SMALLER CAPASITIES

4. NON-VOLATILE

4.1. RELATIVELY SLOW

4.2. SYSTEM STORAGE

4.3. SECONDARY

4.4. ROM

4.5. REQUIRES NO ELECTRICAL POWER

4.6. LARGER CAPACITIES