ABSTRACT Computers are known for their wide range of uses especially in scientific and mathematical fields. However little or no thought has been given to designing a complete career guidance information system. This system is designed in order to implement intelligence test on a computer system. It tries as much as possible to incorporate the important aspect of intelligence on a wide scale. It is designed to test intelligence of secondary school leavers using the Senior School Certificate Examination (SSCE) and the University Matriculation Examination (UME) as a standardized sample, and as such the Psychological implication of such a design is very important. The design of the system is quite simple and easily understood. Its flexibility makes it amenable for future changes and amendment to either incorporate other aspects of intelligence or to be designed for any other school age or class. The question of the intelligence test are programmed and visually displayed on the system’s screen in an interactive form. The student answers the question on the computer system. The results obtained from the test give an estimate on user’s (student) intelligence quotient (IQ). This is equally displayed and tells the student in what category he/she falls within. The result of the test is also displayed of the end of the test which goes a long way to lesson the fears of students that they were marked down in the examination..