what are header files?Can i run program without using header file?
Basically header files are the library functions.Header files have definitions of functions.These are required to execute the specific operation of function.we write header file with .h extension.Generally these are pre-defined fuctions,But we can also generate
our own header file.
stdio.h header file is use to perform function like prinf and scanf.
conio.h header file is use to perform function like clrscr and getch.