ARM (32-bit) Processor Architecture & Programming
The ARM is a 32-bit reduced instruction set computer (RISC) instruction set architecture (ISA) developed by ARM Holdings. It was known as the Advanced RISC Machine. The ARM architecture is the most widely used 32-bit ISA in terms of numbers produced. The relative simplicity of ARM processors made them suitable for low power applications. This has made them dominant in the mobile and embedded electronics market, as relatively low cost, and small microprocessors and microcontrollers.
As of 2005, about 98 percent of the more than one billion mobilephones sold each year use at least one ARM processor. As of 2009, ARM processors account for approximately 90% of all embedded 32-bit RISC processors. ARM processors are used extensively in consumer electronics, including PDAs, mobile phones, digital media and music players, hand-held game consoles, calculators and computer peripherals such as hard drives and routers.