Explain ARM Architecture and Features

First RISC microprocessor for commercial use
The first ARM processor was developed in the year 1978 by Cambridge University, and the first ARM RISC processor was produced by the Acorn Group of Computers in the year 1985.
Acorn developed a 32-bit RISC processor for its own use Acorn Archimedes
These processors are specifically used in portable devices like digital cameras, mobile phones, home networking modules and wireless communication technologies and other embedded systems projects due to the benefits, such as

32-bit RISC-processor core (32-bit instructions)
A large uniform register file
37 pieces of 32-bit integer registers
Pipelined (ARM7: 3 stages)
Cached (depending on the implementation)
8 / 16 / 32 -bit data types
Simple structure -> reasonably good speed / power consumption ratio
Can have 16 coprocessors
The ARM cortex is a complicated microcontroller within the ARM family that has ARMv7 design.
Control over both the Arithmetic Logic Unit (ALU) and shifter in every data- processing instruction
Maximize the use of an ALU an a shifter
Auto-increment and auto-decrement addressing mode
Powerful load/store multiple register instructions
Maximize data throughputs
Conditional execution of every instruction
Maximize execution throughput
Open instruction set extension through the coprocessor
Uniform and fixed-length instruction fields, to simplify instruction decode.