ARM architecture

Arm (stylised in lowercase as arm) is a family of RISC instruction set architectures for computer processors. Arm Holdings develops the instruction set architecture and licenses them to other companies, who build the physical devices that use the instruction set. It also designs and licenses cores that implement these instruction set architectures.

Due to their low costs, low power consumption, and low heat generation, ARM processors are useful for light, portable, battery-powered devices, including smartphones, laptops, and tablet computers, as well as embedded systems. However, ARM processors are also used for desktops and servers, including Fugaku, the world's fastest supercomputer from 2020 to 2022. With over 230 billion ARM chips produced, since at least 2003, and with its dominance increasing every year, ARM is the most widely used family of instruction set architectures.