January 2019
Intermediate to advanced
258 pages
7h 12m
English
Content preview from Blockchain for Business 2019
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Credit and debit card transactions
Credit and debit card transactions involve an even longer list of intermediaries. In addition to the payer's and payee's banks (where they hold accounts), there are a bunch of other payment processors on both sides, and the Visa or Mastercard network in the middle. Visa and Mastercard hold huge market power in this value chain, and this is easy to see in their profit margins. Everyone can check that out in their financial accounts, as they are publicly listed companies.
A basic credit or debit card transaction involves the following steps:
- A consumer initiates a payment at the point of sale (POS) to a merchant or retailer. This is done via a POS terminal (if in a store) or via a website (if online).
- The ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.