In this lesson, we explored different types of motherboards and their specifications, including the various sizes of computer cases. Each motherboard has unique features suited for specific applications, such as gaming or general use, with standard types like ATX and micro ATX being common. We discussed key components such as RAM slots, supported RAM types (DDR4), and the importance of compatibility with CPUs and expansion slots for additional components. By the end of the lesson, students should understand the significant differences between motherboards and how to choose one that fits their needs.