Memory Size of the System

25. Program to get the memory size of the system?

Program

#include<stdio.h>

#include<conio.h>

#include<dos.h>

void main()

{

 union REGS in,out;

 clrscr();

 int86(0x12,&in,&out);           //Calling the interupt

 printf("\nMEMORY SIZE IS:%d kb",out.x.ax);    //Memory size in AX register

 getch();

}

Output

MEMORY SIZE IS:640 kb