I want to know the purpose of using the EEPROM because I can't get it,
I mean I know that it can store values for a long time, but I just can't get the goal here


**

    #include<EEPROM.h>
    void setup()
    {
      Serial.begin(9600);
      EEPROM.write(0,4);
      Serial.print(EEPROM.read(0));
    }
    void loop()
    {
      
    }

**



for example, im using EEPROM to see the difference if I print a value inside variable s to the serial moniter using EEPROM and a normal value inside the variable f.
but I couldn't find the difference between both because when unplugging the power and turn it on again, both of them are printed.
hope you got the idea and I hope to see some feedback.
thank you..