About '\r' and '\n' in C language

'\r ' means 'carriage return' and '\n' means 'new line'.

When type writing machines were used, people were used to pull the lever of a type writer to the left after finishing one line. In this situation, the action to pull the lever to the left side was called 'carriage return'. And then we move paper to the upper side, which was called 'Line feed'.

After computer developed, it was not needed to put two commands for line processing. In this regards, people make the action as a '\n', and '\r' is just used to control command.