what's a computer?

How many computers do you have? Do own just an iPhone, the pocket computer? Do you have an Apple Watch, the wrist computer? Do you have a laptop or desktop, the general purpose computers? Do you have a Raspberry Pi, the hobbyist computer? All of these are types of computers. But what does it mean for a device to be a computer? Furthermore, what does it mean for a device to be a good computer? In this article, I will give my thoughts on the question posed in Apple’s what's a computer ad for the iPad Pro. I will be focusing on people who are blind, but this should spark conversation across all kinds of people with needs other than Facebook and social media.