The input function reads a piece of data that has been entered at the keyboard and returns that piece of data, as a string, back to the program. This function is designed to accept data directly from the user, Similar function is the function raw_input() used in Python programming, which asks the user for a string of data (ended with a newline), and simply returns the string.
I believe it means bullet points as in a form of typing
The Control key on a computer keyboard is a key that is used by pressing it in combination with other keys, enabling other keys on the keyboard to perform secondary functions. It is generally labeled as Ctrl.
