Having games prevent me from plugging in and using multiple controllers is also a disadvantage, especially if I've built a gaming PC for the living room so that the kids and their house guests can play together.

Then keep the last few checkpoints, calculate each checkpoint's SHA-256 to make sure you store what you think you stored, and replicate them to storage on another machine with another fan controller. And if your calculation is so long that once a minute is too often, scale the checkpoint rate appropriately.

Use them, yes. Use them correctly, no guarantee.

The idea of divide and conquer is to split one problem into smaller problems, each of which in theory is easier to solve. Once languages start to include better primitives for concurrency than locks, threads will become easier to do right.

Because I'm writing a compiler, and I'm implementing structured, OO, or exception handling paradigms in terms of jmp instructions.

"cat" does not look like a date. Please give a date in YYYY-MM-DD format.
For example, the fourth of July 2014 would be "2014-07-04".

Because you are placing an international order to a business that ships from a country where that field is mandatory. The "Province/State/Region" field is required because there are on the order of 200 countries, and our United States-based development team lacks the resources to track the preferred address format of every single one of them. We don't know what omitted fields or misspelled fields will make a shipment undeliverable.

Perhaps this is intended as a filter, on the grounds that there is a correlation between businesses too small to have a fax line and businesses too small to place or take the large orders that your business happens to handle efficiently.

There are some fans of the Windows 8 Start Screen who pop up in every discussion about Windows 8 and would beg to differ.

Probably because trying to run a mouse cursor at 24 to 30 fps would introduce quite a bit of lag. There'd need to be a dirty-rectangle-oriented interface first.