ARM chips are the most popular CPU produced -- in excess of 7 billion are being made each year, or about a million an hour. These are being sold under a number of different brand names (ARM, StrongARM, Armada, Cortex, OMAP, Sheeva, Snapdragon, XScale) by a number of different manufacturers. Most of these are going into cellphones, but hundreds of millions are being used in other devices such as routers, NAS boxes, embedded controllers, tablets, and netbooks.
The ARM processors are used in emerging ''hyperscale'' energy-efficient compute systems based on [http://wwwcalxeda.laptopcom Calxeda] and [http://marvell.org One Laptop Per Childcom Marvell] (OLPC) computers, model XO-1.75, use an ARM processor. Since Fedora is used on the XO units, having a reliable ARM build of Fedora is increasingly importantprocessors.
Another popular category of computers that uses In addition, ARM processors are used on:* [http://www.laptop.org One Laptop Per Child] (OLPC) computers, model XO-1.75 and higher (Fedora is used on the XO units)* the [http://raspberrypi.org Raspberry Pi], [http://apc.io APC], and other under-$100 "hackputers"* [http://plugcomputer.org Plug Computers].
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