Advanced RISC Machines

ARM architecture family is a family of RISC instruction set architectures for computer processors, developed by Arm Holdings, which licenses the instruction set to other companies. ARM processors are used in a wide range of devices, from smartphones and laptops to desktops and supercomputers, due to their low costs, low power consumption, and low heat generation. The family has undergone several generations, with the original ARM1 having a 32-bit internal structure but limited to a 26-bit address space, and later generations such as ARMv3 and ARMv8-A adding support for 32-bit and 64-bit address spaces, respectively.learn more on wikipedia