According to previous research, computers and the Internet play crucial roles in students' adoption and utilization of new information technology. Due to the accelerated development of mobile technology in recent years in Saudi Arabia, mobile learning (m-learning) has become a popular topic. However, little is known about the attitudes and self-efficacy of language learners regarding the use of mobile devices, especially in the Saudi context. Using task-based instruction, this study aimed to investigate undergraduate students' attitudes and self-efficacy regarding the use of mobile learning devices in a language class. The study's sample consisted of 79 undergraduate students at two Saudi universities who used mobile devices for m-learning to complete designated tasks in an English class. As per the study's findings, most students experienced an augmented drive to learn English through m-learning. They also opined favorably about this aptitude for acquiring knowledge. The conclusions carry substantial implications for upcoming research inquiries and its practical applicability concerning m-learning.

computer, self-efficacy, m-learning, language learning, task-based approach