In my office, medical credit cards work.
Its cards work in more than 170 countries.
"I don't think everybody understands how these cards work," she said.
Many suggestions are related to improving how room key cards work, Mr. King said, laughing.
Credit cards work erratically, so hotels must be able to handle wads of greenbacks.
Prepaid cards work much like debit cards, except that they are not tied to a traditional, regulated bank account.
Interbank transfers are an unwise act of faith; credit cards work only patchily; there are periodic, unexplained shortages of roubles, and an even weirder exchange rate for them.
Here's what you'll need to play: slips of paper (index cards work well), a handful of pencils or pens and a pile of paperback books.
The issuers respond by pointing to seminars they sponsor that explain how credit cards work and the importance of maintaining creditworthiness.
Still, many employees hesitate, usually because of language barriers, a distrust of banks and, most of all, confusion over how the cards work, Ms. Moore said.
If the cards work, ordinary servers costing a few thousand dollars might be deployed for sophisticated data analysis, genetic research, logistics management or other activities that are currently done on multimillion-dollar racks of computers.
