System network architecture, futuristic, high-tech, 3D visualization, circuit boards, wires, microchips, servers, routers, switches, modems, satellite dishes, fiber optic cables, urban skyscraper, cityscape, night scene, neon lights, holographic projections, data streams, packets transmission, binary code, firewall security, network topology, decentralized system, cloud computing, virtual private network, internet of things, 5G network, Wi-Fi signals, radio waves, microwave towers, satellite orbits.