Let's make a bet!!

"Hahahaha, no problem, we will see your potential," said Mr. Robert, and took out a remote from his pocket. It was exactly the same as the one Principal Li had at that time.

He took it out and clicked a button on it. 

Crank! Craww!! Crank! Whoosshhh....

Came some mechanical sound and a big computer-like thingy appeared from the ground. It looked exactly like an olden era computer but the screen was a virtually projected screen and instead of a keyboard it had an empty board and scanner.

Mr. Robert looked at it and asked, "You all know what's this right?"

Everyone answered yes, except Ryan. Mr. Robert observed it but didn't say anything to him. Instead, he gave a short introduction about it.