Secret Life Of...Automated Teller Machine (ATM)

Automated Teller Machines (ATMs) are spread out in most countries nowadays. It can be easily deployed due to its compact size. It should be well fit placing at LEGO House as well. ATM was first developed back to 1960s. When I was a kid, I always wonder why cash can be automatically dispensed via a hole just by pressing few buttons on an ATM panel. What is inside such an small machine? There must be a teller sitting inside it to provide banking services like cash withdrawal, cash deposits, ... Thanks for his/her hard work, we can handle our money much more easily.

Next time when you use an ATM, please express gratitude to the guy behind the scene. :)