====== putch ======
<code c>
int putch(int c);
</code>

==== description of putch ====
prints characters on the screen.\\
\\
putch gives the character c to the current text window. It is a text-mode function that displays output directly to the console.\\ putch replaces the newline character (\ n) characters are not merchandise return / line feed.\\
\\
Depending _directvideo of the global variable, the string is written either directly or through a BIOS call to screen memory.\\

Return values: success the character, failure EOF
<code c>
#include <stdio.h>
#include <conio.h>

int main(void)
 {
   char ch = 0;
   printf("Input a string:");
   while ((ch != '\r'))
   {
     ch = getch();
     putch(ch);
   }
   return 0;
 }
</code>

===== output of putch c example =====
    Input a string: test123
    test123