What is ARM? Explain special feature of ARM processor.

ARM, which stands for Advanced RISC Machine, is a family of reduced instruction set computing (RISC) architectures for computer processors, configured for various environments. ARM processors are extensively used in consumer electronic devices such as smartphones, tablets, multimedia players and other mobile devices, such as wearables.

ARM processors have a unique set of features that set them apart:

1. Low Power Consumption: ARM processors are known for their low power consumption, making them ideal for use in portable devices.

2. RISC Architecture: ARM uses a Reduced Instruction Set Computer (RISC) architecture, which allows for a smaller set of simpler instructions, leading to more efficient processing and power usage.

3. High Performance: Despite their low power usage, ARM processors deliver high performance, making them suitable for a range of applications.

4. Scalability: ARM offers a range of processors, each designed for specific requirements. This makes them highly scalable and adaptable to different device needs.

5. Licensing Model: ARM licenses its technology to other companies, who can then customize and build their own chips. This has led to a wide adoption of ARM processors in the industry.