Memory swapping is a memory reclamation method wherein memory contents not currently in use are swapped to a disk to make the memory available for other applications or processes. The exact state or "page" of memory is copied to the disk to make the data contiguous and easy to restore later.
The Node Pole is a marketing term used to describe a geographic area in Northern Sweden that is looking to become a global hub for data traffic and high-end data center hosting. It consists of the municipalities of Luleå, Boden and Piteå.The name Node Pole is a combination of the terms node and the North Pole.
While isolated geographically, the pitch from those behind the Node Pole is that it provides stable, low-cost electricity that is 100% derived from renewable sources. In addition, they cite the benefits of low cooling expenses, given that the region is one of the coolest in Sweden. Sweden is also known for its political stability, which is cited as another long-term benefit of the Node Pole.The Node Pole generated big business for the region after attracting Facebook, which agreed in October 2011 to build its first data center outside the U.S.
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