Unlike virtually every computer system in the world which uses a variant of ASCII, IBM mainframes and midrange systems such as the AS/400 tend to use a wholly incompatible character set primarily designed for ease of use on punched cards. (For an excellent page on punched cards, see Doug Jones's Punched Card Codes).
There are a few Keurig K-cups that DO contain calories. They fall under two categories. Brew Over Ice teas and coffees (except Twinings) and Cafe Escapes. Keurig has kept those around 60 calories each. When in doubt consider the consistency of the coffee. If it is creamy- it contains calories and most likely sugar. If it is a simple black coffee, calories are not an issue.
The Inventor Of Keurig K-Cups Is Feeling Pretty Guilty Right Now. If your morning routine involves popping a pod into your trusty Keurig coffeemaker, contemplate this: Not only are K-Cups destroying the environment, but the guy who invented them feels guilty about it. John Sylvan came up with the Keurig machine in the early 1990s and sold his share of the company in 1997.