Final answer:
The built-in function that can be used to read input typed on the keyboard in Python is the input() function.
Step-by-step explanation:
The built-in function that can be used to read input typed on the keyboard in Python is the input() function. It is used to read a line of text from the console and returns it as a string. The input() function can be used to prompt the user for input and store the input value in a variable for further processing.