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Apple's post-PC devices disrupted a hell of a lot more than just point-and-shoot cameras. Assistive and augmentive communications devices with cutting-edge technology like touchscreens used to cost thousands of dollars. It was impossible to produce the devices at consumer-technology scale, and the cost of the device was borne by insurance (when it was borne at all).
"Accessible" means "something everyone can use." In pop culture and consumer technology, "accessible" sometimes means things that are easy for lots of people to understand or enjoy. In the disability community, "accessible" means something is open to people of all abilities, usually because it was designed with them in mind. And in both spheres, "accessible" can mean something almost anyone can both find and afford. Like anything else, Apple's iThings can sometimes seem too complex, too presumptuous, too expensive. But really, even with their limitations, they're amazingly accessible in every sense of the word.
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