<span>I would advise her to press the fn keyboard key
along with the function key with a monitor connected on it. She should ensure
that she has the correct cable to connect the laptop to the projector. Most
laptops require a manual switch by pressing these combination keys but for
some, they will automatically detect the external display and switch to video
output</span>
It's Binary code simple as that its made of 8 1's and 0's
