MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -Until recently, the name Arm was treated as an acronym, ARM, which at first stood for Acorn RISC Machine and then for Advanced RISC Machine. The acronym is still widely used, although Arm Limited uses only Arm when describing its processor technology.

Detailed explanation-2: -Advanced RISC Machine (ARM) is a processor architecture based on a 32-bit reduced instruction set (RISC) computer.

Detailed explanation-3: -RISC, RISC-V, and ARM are terms used in processor design to denote a type of processor using a specific type of instruction set architecture (ISA). Although not commonly used in mainstream computers, these processors power smartphones, microcontrollers, single-board computers, and all kinds of IoT devices.

Detailed explanation-4: -ARM (stylised in lowercase as arm, formerly an acronym for Advanced RISC Machines and originally Acorn RISC Machine) is a family of reduced instruction set computer (RISC) instruction set architectures for computer processors, configured for various environments.

Detailed explanation-5: -ARM-an acronym for: Advanced RISC Machines. The processor originated in England in 1984. At its inception ARM stood for Acorn RISC Machine. The first ARM reliant systems include the Acorn: BBC Micro, Masters, and the Archimedes.