A breakthrough in the AI intelligence the development of natural interfaces is a prerequisite to the optimal use of computers by human beings. It incorporates:

a. Natural Languages: The computer programming languages are essentially concerned with binges able to communicate with computers and robots in conversational human languages. This ensures a platform for crystal clear communication between computer or robots and the user and facilitates understanding of instructions given by the user. It increases the responsiveness of the machine.

b. Speech Recognition: Essentially motivated by success in development and use for a natural languages voice recognition and response technology has evolved which permits the user to substitute the conventional use of keyboard and mouse to input data by merely suing their speech.

c. Multi sensory Interface: These devices use diverse human body movements to maneuver computer.

d. Virtual Reality ( VR) : uses a range of multi sensory input / output devices ( human computer interfaces) the enable the user to experience and interact with computer simulated objects entities and environments as if they actually exists. The most extensive use of VR is in the field of computer aided design. Other applications are ain the field of medical diagnostics and treatment fight simulation for training pilots and astronauts game playing scientific analysis engineering and human resources training and recreation.