Cloud computing architecture, complex diagram, multiple layers, scalable infrastructure, virtualization, distributed systems, on-demand resources, storage, network, database, application, service providers, public private hybrid, deployment models, IaaS PaaS SaaS, user access devices, laptops smartphones tablets, internet connectivity, routers firewalls switches, data centers, servers racks cabinets, cooling systems, power supplies, cables wires, virtual machines, containers orchestration, microservices architecture, APIs gateways load balancers, security monitoring logging, real-time analytics, 3D diagram, futuristic neon glow, digital circuit board aesthetic.