The term intelligence refers to all the distinct mental abilities that characterize some people and gives them a preference in their performance and behavior in a particular field. The fields of intelligence are unlimited and can not be counted. The specialists in the field have not yet been able to formulate a specific meaning of intelligence , Because of the difference in experts in the classification of forms and types and degrees from one area to another and from one environment to another. It is said that intelligence that is created with the human and develops through learning and acquisition of skills, and what is acquired is developed and developed in a particular area through intensive training programs and skills.

Harvard Theory of Intelligence
In this regard, Harvard University attempted to develop and formulate a special theory of intelligence, which can be universally adopted if the results of the measurement of performance are correct. The theory is that there are eight types of intelligence, namely, the musical intelligence, the sensory or kinetic intelligence, Biological intelligence, visual and spatial intelligence, individual or subjective intelligence, logical intelligence, and social and visual intelligence. The purpose of identification of these types first the absence of a unified theory of intelligence, and secondly to enable people to know their abilities and tendencies. All the possibilities are available to develop all these types of intelligence.

The most prominent definitions of psychologists for intelligence according to job include the following:
Terman : he defined intelligence as the ability to perform abstract thought.
 Colvin: IQ is the individual's access to the stage of ability to learn.
Stern: is the general ability of the individual to adapt mentally with new situations and life problems.
Jordad: Jordan knew intelligence as the ability to use previous experiences and use them to solve the problems present, in addition to predicting and anticipating future problems that may be exposed to the individual.
Harod Gardens: Intelligence is the level of intellectual competence of the individual that consists of a set of skills that enable the individual to use them to solve problems and acquire new knowledge.

artificial intelligence
In the mid-1980s, researchers developed computers capable of making some decisions based on solutions to pre-programmed problems. However, developers failed to exploit this invention in practical applications, and with the continued technological progress, computers were able to learn and solve problems autonomously. 1997 man was defeated for the first time in chess by computer. The continuous inventions and improvements prompted artificial intelligence to become today an urgent need and an effective indispensable means.