Q1 In C, characters have ASCII codes in range 0-255. How can we print characters having ASCII code from 128-255.
printf("%c",(unsigned)129); //it will still print the char having ASCII -127

Q2 ASCII char range is 0-255,then where do the characters having -127 to 0 ASCII code come from.

Q3 Where r the local & global static variables stored.

Q4 I read that const variables r stored in rom. How cum bcoz as far as i know rom can be programmed only by hardware means.

Q5

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   int a=9999;
   float *p=(float *)&a;
   printf("%f",*p);      //output is 0.000000 why?

int a=9999; float *p=(float *)&a; printf("%f",*p); //output is 0.000000 why?

Q6

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printf("%d%d",10ul,10); //output is 100 why?

printf("%d%d",10ul,10); //output is 100 why?

Q7

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    float f=10.67;
    int *p=(int *)&f;
    printf("%d",*p);       //output is -18350 why?

float f=10.67; int *p=(int *)&f; printf("%d",*p); //output is -18350 why?