Fast growth of computer related technology both in software-hardware and application areas, brings new challenges to be faced when using computers for supporting education. In this paper some experiences and the results of a survey are presented in teaching computer topics using computer as a teaching tool. Our teaching activities are related to both computer engineering and vocational school computer programming students and also to students from different areas like marketing, foreign trade, etc. The students in the second category learn computers as a tool for their daily work, whereas students of the first group learn computers as part of their professional education. Although the students come from different departments, there are many common pedagogical problems. In this paper, relationships between the efficiency of learning and the ownership of personal computers have been investigated. For this purpose, we conducted a survey on the students of Yasar University and evaluated the results together with their exam grades. The outcomes are presented and some conclusions are drawn, which concern the influence of computer ownership and usage patterns on the learning curve of students. (Contains 1 figure and 4 charts.)