Difference between char* and char[]

Question

I know this is a very basic question. I am confused as to why and how are the following different.

char str[] = \"Test\";
char *str = \"Test\";

Answer 1

The diference is the STACK memory used.

For example when programming for microcontrollers where very little memory for the stack is allocated, makes a big difference.

char a[] = "string"; // the compiler puts {'s','t','r','i','n','g', 0} onto STACK 

char *a = "string"; // the compiler puts just the pointer onto STACK 
                    // and {'s','t','r','i','n','g',0} in static memory area.