ARM Holdings plc is a British multinational semiconductor and software design company with its head office in Cambridge, England. Its largest business is designing processors bearing the ARM name, although it also designs software development tools under the RealView and Keil brands, systems and platforms, system-on-a-chip infrastructure and software. It is considered to be market dominant in the field of processors for mobile phones and tablet computers and is arguably the best-known of the 'Silicon Fen' companies.
Processors based on designs licensed from ARM, or designed by licensees of one of the ARM instruction set architectures, are used in all classes of computing devices from microcontrollers in embedded systems – including real-time safety systems, smartTVs and all modern smartwatches – up to smartphones, tablets, laptops, desktops, servers and supercomputers/HPC.
ARM's Mali line of graphics processing units is used in laptops, Android tablets and smartphones and smartwatches. It is third most popular in mobile devices.
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