Humans create systems that must support human achievement in the use of new application technologies to the user capabilities, and characteristics of the technology can be used optimally for the accomplishment of objectives. Availability of a support system is recognized as an essential aspect which affects the level of computer self-efficacy of someone in the use of technology. Computer self-efficacy has a role in the decision to use the technology and make it easier to process skills that are related to the effectiveness of the use of technology. This study aims to determine the impact of system support on the level of computer self-efficacy to improve the efficacy in the use of new application technologies. The result of this study provide that the system supports significant and impact positively on the level of computer self-efficacy and effectiveness in the use of new application technologies. The results of the study can be used as an additional reference for software developers to focus on developing functions of assistance and computer simulations to improve self-efficacy and effectiveness in the use of new applications. Development system support is expected to help to optimize the resources (time, money, and human).