Three-tier architecture, DBMS, database system, modern computing, futuristic, sleek metal framework, transparent glass walls, neon lights, rows of servers, humming machinery, air conditioning vents, complex circuitry, wires and cables, CPU units, memory modules, storage devices, database software, user interface, query optimization, data encryption, backup systems, network infrastructure, routers and switches, firewall security, cloud connectivity, morning light, atmospheric fog, subtle ambient glow, cinematic composition, futuristic ambiance.