Thanks to many ad campaigns over the years, most people know that their notebook PCs are powered by processors from Intel (or its chief rival, AMD). Those companies use a chip architecture known as x86, named for the the last two digits of the Intel chip model number in the first IBM PC. But while Intel may be the best-known PC chip company, designs from ARM (Advanced RISC Machines) serve as the basic architecture behind chips from Apple, Samsung, Qualcomm, and Nvidia that power almost every smartphone on the market. All current Apple iDevices use Apple chips based on ARM designs; the same is true for Samsung Galaxy devices using Samsung Exynos chips. Most other Android devices in this class use ARM-based Tegra chips from Nvidia or Snapdragon chips from Qualcomm. Despite the great progress that Intel has made with its new Haswell design, products based on ARM chip designs tend to be thinner, cooler (thermally, at least), and cheaper than those based on Intel designs while offering longer battery life. In fact, these days you can get a notebook -- or something that functions as one -- using your choice of four different operating systems. Many of these products offer touch screens and can detach from their keyboards to function as tablets as well. Read more here --> news.cnet.com
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