| http://www.w3.org/ns/prov#value | - A couple of pieces I read today compare Apple???s POS systems with those in grocery stores or other retail environments, suggesting that ???all??? such devices offer tactile buttons, because the Americans with Disabilities Act (ADA) requires them, and that these buttons solve the problem for blind people who need to enter a PIN. In fact, I???ve used some POS systems that rely on non-tactile button
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