This paper describes several issues on the relationship between early childhood education and the use of computers, analyzing the awareness of advantages and disadvantages of using computers in early childhood education. Early childhood teachers and future early childhood teachers were the subjects in this research. At first, we asked subjects to write down whatever they felt about advantages and disadvantages of using computers in an early childhood educational setting. Based on the results of this preliminary research, we determined questions (41 advantages and 42 disadvantages) to be asked in the main questionnaire. By factor analysis, the advantages were divided into three factors : development of ability to think and express oneself, acquisition of computer literacy, and experiences in virtual reality. The disadvantages were divided into four factors : decreasing in contact with friends or toys, difficulty in setting up computer environment, decreasing in emotional and social experiences in real life, and sole dependence on computers.