The ARM processor is the first RISC microprocessor designed by Acorn Ltd. in the United Kingdom for low power consumption and cost.

The full name is Advanced RISC Machine.The ARM processor itself is a 32-bit design, but also comes with a 16-bit instruction set, which is generally up to 35% less expensive than the equivalent 32-bit code, while retaining all of the advantages of a 32-bit system.ARM's Jazelle technology allows for much higher performance for accelerated Java than software-based Java virtual machines. Jazelle technology enables Java acceleration with much higher performance than a software-based Java virtual machine and up to 80% lower power consumption than an equivalent non-Java accelerated core.

The addition of the DSP instruction set to the CPU functionality provides enhanced 16-bit and 32-bit arithmetic capabilities for increased performance and flexibility. ARM also offers two cutting-edge features to assist in the debugging of highly-integrated SoC devices with y-embedded processors: the Embedded ICE-RT Logic and the Embedded Trace Macrocore family.

Benefits of ARM processors

Compared to other processors, ARM processors perform better in terms of power consumption. This is mainly due to the fact that ARM processors utilize the RISC (Reduced Instruction Set Computer) instruction set architecture, which is characterized by fewer instructions, shorter instruction lengths, and faster execution speeds, thus effectively reducing power consumption.

In addition, ARM processors utilize modern manufacturing processes and advanced power management technologies to further reduce power consumption. Therefore, ARM processors are widely used in mobile devices, embedded systems, smart homes and other fields.

ARM processors also use cache technology and instruction prediction technology to further improve processor performance. Therefore, ARM processors are widely used in high-performance computing, artificial intelligence, big data processing and other fields.