This study investigates the relationship between users' perceptions of a computerized system's aesthetics and usability. The experiment used a computerized application simulating an Automated Teller Machine (ATM) to elicit perceptions before and after participants used the system. Pre-experimental measures showed strong correlations between perceived aesthetics and perceived usability. Post-experimental measures confirmed these correlations, indicating that the strong correlation remained intact. A multivariate analysis of covariance revealed that the degree of system aesthetics affected both post-use perceptions of aesthetics and usability, while the degree of actual usability had no such effect. The findings suggest that users do not perceive aesthetics and usability as independent dimensions and highlight the importance of studying the aesthetic aspect of human-computer interaction (HCI) design. The results are similar to those found in social psychology regarding the effect of physical attractiveness on the valuation of other personality attributes. The study emphasizes the need for an integrative approach to HCI design that considers both form and function.This study investigates the relationship between users' perceptions of a computerized system's aesthetics and usability. The experiment used a computerized application simulating an Automated Teller Machine (ATM) to elicit perceptions before and after participants used the system. Pre-experimental measures showed strong correlations between perceived aesthetics and perceived usability. Post-experimental measures confirmed these correlations, indicating that the strong correlation remained intact. A multivariate analysis of covariance revealed that the degree of system aesthetics affected both post-use perceptions of aesthetics and usability, while the degree of actual usability had no such effect. The findings suggest that users do not perceive aesthetics and usability as independent dimensions and highlight the importance of studying the aesthetic aspect of human-computer interaction (HCI) design. The results are similar to those found in social psychology regarding the effect of physical attractiveness on the valuation of other personality attributes. The study emphasizes the need for an integrative approach to HCI design that considers both form and function.