“A generation ago, computing usually took place in a single mainframe or personal computer. Now it is routinely spread across thousands of independent processors in machines that can be separated by a few feet or entire continents.
Chip designers have long struggled to maintain the precise timing needed to order mathematical operations inside individual computing chips. And synchronizing these vast ensembles of them has become the limiting factor in the speed and processing power of what Google describes as “planetary-scale” computers.”
Read the whole interesting article at www.nytimes.com.