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This study aims to investigate comparative analysis of bank’s ATM and POS technologies by customers applying Technology Acceptance Model 3 (TAM3) so that TAM3’s accepted components will be analyzed separately for each ATM and POS technologies. Statistical population includes Melat Bank’s customers residing in Tehran. Applying Cochran's sample size formula, 139 customers were selected randomly. The data collected from questionnaires were analyzed applying SPSS 21. The findings show that generally speaking, people use points of sale than ATMs. In most of TAM3’s components, ATMs show higher acceptance than points of sale. Only in self-efficacy, perceived joy and result demonstrability, points of sale were higher than ATMs. In anxiety and behavioral intention components, there was a meaningful difference between points of sale and ATMs regarding acceptance.
