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Paper 1: Computer systems

Introduces you to the central processing unit (CPU), computer memory and storage, data representation, wired and wireless networks, network topologies, system security and system software. It also looks at ethical, legal, cultural and environmental concerns associated with computer science.

Here are some wonderful videos to help prepare.

1.1: Systems Architecture

1.2: Memory & Storage

1.3 Network Connections & Protocols

1.4: Network Security

1.5 Systems Software

1.6 Ethical, Legal, Cutural and Environmental Issues