ARM Architecture

ARM (formerly Advanced RISC Machine and Acorn RISC Machine) is a reduced instruction set computer (RISC) instruction set architecture (ISA) developed by British company ARM Holdings. The ARM architecture is the most widely used 32-bit instruction set architecture in numbers produced.

Originally conceived by Acorn Computers for use in its personal computers, the first ARM-based products were the co-processor modules for the BBC Micro series of computers.

Features and applications

In 2005 about 98% of the more than one billion mobile phones sold each year used at least one ARM processor. As of 2009 ARM processors accounted for approximately 90% of all embedded 32-bit RISC processors and were used extensively in consumer electronics, including personal digital assistants (PDAs), tablets, mobile phones, digital media and music players, hand-held game consoles, calculators and computer peripherals such as hard drives and routers.

Source : Wikipedia