The purposes of this research were 1) to develop the online lesson in Technology Subjects (Computing Science) about data and information and 2) to evaluate the quality of the content of the online lesson in Technology Subjects (Computing Science) About Data and Information. The target group were 5 experts of the content and 5 experts of the technique and methodology, selected by purposive sampling. The tools used in this research were the lesson plan, the online lesson, the content quality assessment form, and the technique and method assessment form. The statistics used in this research were mean and standard deviation.

            The research results showed that 1) the online lesson in Technology Subjects (Computing Science) About Data and Information had 3 units, and 2) the online lesson in Technology Subjects (Computing Science) About Data and Information had the quality of the content at a high level ( = 4.39, S.D. = 0.32) and 3) the online lesson in Technology Subjects (Computing Science) About Data and Information had the quality of the technique and methodology at the highest level ( = 4.67, S.D. = 0.14).