#include"stdio.h"#include"stdlib.h"#include"string.h"#include"dos.h"#include"conio.h"#include"bios.h"#define UP 18432#define DOWN 20480#define ENTER 7181static int Current_highlight_counter = 0;struct contact{ char name[15]; char phonenumber[16]; char homenumber[16];}Contactlist[10];vo...