Comments on: How Do Vending Machines Read Dollar Bills?

By: BlueSea

BlueSea — Thu, 01 Oct 2009 04:46:05 +0000

I don’t know,
I don’t care’
I do know the next time one spits my dollar back at me I am likely to kill it, if one can kill a machine

By: Obama Happends

Obama Happends — Thu, 01 Oct 2009 04:46:05 +0000

Every vending machine has a computer program that works like ‘face recognition’. This is why streak rules posted, face up, face down, etc.
Computer chip reads ‘image’ and determines how much it worse

By: WP Robot

WP Robot — Thu, 01 Oct 2009 04:46:04 +0000

It is programmed to know a dollar from a five dollar bill, that is why it only accepts the dollar put in a certain way faced up. Put it in face down it will send it back out because it is foreign to the scanner. That part of the bill is not stored in its memory.