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This document summarizes an embedded operating system final project presentation. The project involves developing an OS for group buying functionality. The presentation outlines the user guide, architecture, OS applications, I/O devices, and demonstrations of the system. The system allows users to search for groups, create groups, join groups, and receives notifications when a group is full. It uses multiple threads, semaphores, mutexes, and signals to synchronize data and notifications across client-server communication. Demonstrations show the behavior of multiple clients creating and joining groups simultaneously and receiving signals when a group is filled.