1, the distributed architecture is applied to the terminal OS for the first time, and a seamless collaborative experience across terminals is realized. The "distributed OS architecture" and "distributed soft bus technology" of HarmonyOS system OS have four capabilities: public communication platform, distributed data management, distributed capacity scheduling and virtual peripherals. It shields the application developers from the difficulty of realizing the underlying technology of the corresponding distributed application, enables the developers to focus on their own business logic, and develops cross-terminal distributed applications like developing the same terminal, and also enables the terminal consumers to enjoy the seamless experience brought by the powerful cross-terminal business collaboration capability for each usage scenario.

2. Determine the delay engine and high-performance IPC technology to realize the natural smoothness of the system. HarmonyOS OS solves the problem of insufficient performance of the existing system by using deterministic delay engine and high-performance IPC. The delay engine can assign the priority and time limit of task execution in the system so that it can be scheduled before task execution. Task resources with high priority will be scheduled first, and the application response delay will be reduced by 25.7%. The compact structure of HarmonyOS system microkernel greatly improves the performance of IPC, and the efficiency of process communication is five times higher than that of existing systems.

3. Rebuild the credibility and security of terminal equipment based on microkernel architecture. HarmonyOS operating system adopts a brand-new microkernel design, which has stronger security features and low latency. The basic idea of microkernel design is to simplify kernel functions, realize system services in user mode outside the kernel as much as possible, and increase mutual security protection. Microkernel only provides the most basic services, such as multi-process scheduling and multi-process communication.

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