keyboard stop working at Dos

I dont know what has happened to my pc .
I have win xp and borland c++ (3.1) and it is in 2 models ( one is run at windows and the other is run at Dos ) . usually I use the one that is run at win .
for one of my classes I need to get the aski code of a simple program and our teacher told us useing the compiler that is run at Dos is better for undresatnding the aski code (if it be at win , the aski code will have some more codes ), but know I cant use the one that is run at Dos .
when I enter the environment (the blue page that is similar to paskal invironment), both of keyboard and mouse stop working and just the " win " key of my keyboard works .
can any one tell me what is wrong ? I have to solve this problem cause I must get the aski code and bring it for my teacher .

can one of u use this code in his(her) compiler and give me the aski code ?

Code:

#include <iostream.h>
int f(char,float);
int g=1;
int main(){
char a='A';
float b=3.2;
int k;
k=f(a,b);
cout << k;
return 0;}

int f(char a,float b){
static int c=20;
int f=6;
cout << a <<'\n';
cout << b <<'\n';
cout << g <<'\n';
c+=f;
cout << c <<'\n';
return (12);}

thanks alot

Here's a link to an ASCII chart.

I don't know whats wrong with your DOS compiler set-up.

Windows should print all of the "normal" ASCII characters. DOS will print an extended character set... i.e. characters above 127.