Can you explain what is meant by ARM and what is its essence?

ARM (Advanced RISC Machine) is a processor architecture with a RISC (Reduced Instruction Set Computer) instruction set, characterized by simplicity and energy efficiency.

The essence of ARM is that it uses a small and optimized set of instructions, allowing the creation of processors with low power consumption and high performance per watt. As a result, ARM processors are widely used in mobile devices, embedded systems, and IoT.

For example, most modern smartphones run on ARM chips, which provides long battery life and compact device size.