ARM is in first the name of the company ARM, founded by Acorn Computers and Apple Computers in 1990 lastly acquired by Nvidia (09/2020) for $40 billions.
It is mostly known for their ARM architecture, wich is a famimly of architectures for computer processors. This architecture is used to design products like systems-on-chips (SoC) and systems-on-modules (SoM) that incorpore in one single chip all of the components needed for a computer.
Because of its conception, ARM is more efficient in terms of power than x86 architecture. Thus its wide range of use in portable devices such as IoT devices, Raspberry Pi, smartphones and tablets.
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