ARM architecture

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ARM architecture is a computer CPU architecture commonly used in embedded systems and mobile devices such as cell phones, smartphones, tablet computers, and handheld game consoles such as the Game Boy Advance. ARM CPUs use very little electricity and produce very little heat. Most ARM CPUs run on battery power and don't need a cooling fan. The Linux operating system is used most on ARM CPUs. ARM is, as of 2013, the world's most popular 32-bit CPU architecture, particularly due to the large number of embedded systems sold. A 64-bit version of ARM has been announced, and support for this 64-bit variant has been added to the Linux kernel. The 64-bit variant will first be used for servers, and later for the next generation of mobile phones and tablet computers. The 64-bit version will allow programs to access more than 4 GB of RAM, but at the cost of slightly higher electricity usage.

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