conio meaning
It means to include the header file conio.h in your C/C++ program. conio.h is a header file used in old MS-DOS compilers to create text user interfaces. It is not part of the C programming language, the C standard library, ISO C nor is it required by POSIX. This header declares several useful library functions for performing console input and output from a program.
conio.h header used in c programming contains functions for console input/output. Some of the most commonly used functions of conio.h are clrscr, getch, getche, kbhit etc. Functions of conio.h can be used to clear screen, change color of text and background, move text, check if a key is pressed or not and many more. conio.h file is provided by Borland turbo c compiler and GCC compiler doesn't support it.