block 16 networks and web security

How does a message sent from your device travel across the world to reach another computer in seconds? In this final block of your A-Level course, you will explore the architecture of global networks, the protocols that keep the internet running, and the security measures used to protect sensitive data. Beyond the hardware and cables, you will also investigate the legal frameworks, ethical dilemmas, and environmental responsibilities that every modern computer scientist and software developer must consider in an increasingly digital society.