ARM, or Advanced RISC Machine, is a type of computer architecture that focuses on efficiency and performance. It is widely used in mobile devices, such as smartphones and tablets, because it consumes less power while delivering strong processing capabilities. This makes ARM a popular choice for manufacturers like Apple and Samsung when designing their devices. The ARM architecture is based on a Reduced Instruction Set Computing (RISC) design, which simplifies the instructions that the processor needs to execute. This allows for faster processing speeds and lower energy consumption. As a result, many IoT devices and embedded systems also rely on ARM technology to function effectively.