DC Machines are electrical devices that convert direct current (DC) electrical energy into mechanical energy or vice versa. They consist of a rotor, stator, and commutator, which work together to produce motion. DC Motors are used in various applications, such as electric vehicles and industrial machinery, while DC Generators are used to produce electricity in power plants. These machines operate based on the principles of electromagnetism, where a magnetic field interacts with a current-carrying conductor. DC Machines are known for their simplicity, ease of control, and ability to provide high starting torque, making them suitable for many practical uses in everyday technology.