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Abswrite example , compiled with Turbo C

#include <stdio.h> #include <dos.h> #include <stdlib.h> #include <bios.h> int main(void) { unsigned char buffer[512]; clrscr(); printf("Insert a blank disk in the A: drive , then press any key.\n"); /*wait for keypress*/ getch(); if(abswrite(0,1,1,&buffer) != 0) printf("Cannot write to the A drive.\n"); else printf("Drive A , Sector 1 written to\n"); return 0; }