The computer is one of the most interesting inventions we have today. It is analogous – similar – to the human brain. The part of the computer which functions as the brain does is electronic circuitry. It carries out the main functions of the computer that a normal human brain would. This circuitry is known as the Central Processing Unit, or in simple terms, CPU. The human brain is divided into the right and left hemispheres. These hemispheres perform functions which control how the rest of the body functions. The right hemisphere controls art awareness, creativity, insight, and left-hand functions. The left hemisphere controls logic, numeric skills, writing, and right-hand functions.