OCR GCSE Computer Science (J277)

1.1.1 Architecture of the CPU Open Lesson 1.1.2 CPU Performance Open Lesson 1.1.3 Embedded Systems Open Lesson

1.2.1 Primary Storage Open Lesson 1.2.2 Secondary Storage Open Lesson 1.2.3 Units of Storage Open Lesson 1.2.4.1 Binary and Denary Open Lesson 1.2.4.2 Binary Arithmetic, Overflow and Binary Shifts Open Lesson 1.2.4.3 Hexadecimal Open Lesson 1.2.4.4 Character Sets Open Lesson 1.2.4.5 Images and Sound Open Lesson 1.2.5 Compression Open Lesson

1.3.1.1 Types of Networks (LAN and WAN) Open Lesson 1.3.1.2 Network Performance Open Lesson 1.3.1.3 Client-Server and Peer-to-Peer Networks Open Lesson 1.3.1.4 Network Hardware Open Lesson 1.3.1.5 Star and Mesh Topologies Open Lesson 1.3.1.6 The Internet, WWW, DNS and Hosting Open Lesson 1.3.1.7 Cloud Computing Open Lesson 1.3.2.1 Wired and Wireless Networks Open Lesson 1.3.2.2 Transmission Media Open Lesson 1.3.2.3 IP and MAC Addresses Open Lesson 1.3.2.4 Network Protocols Open Lesson 1.3.2.5 Common Protocols Open Lesson

1.4.1 Network Threats Open Lesson 1.4.2 Network Security Open Lesson

1.5.1.1 Operating Systems Open Lesson 1.5.1.2 Operating System Functions Open Lesson 1.5.1.3 File Management Open Lesson 1.5.2 Utility Software Open Lesson

1.6.1.1 Ethical Issues Open Lesson 1.6.1.2 Environmental Issues Open Lesson 1.6.1.3 Legal Issues Open Lesson 1.6.1.4 Cultural Issues Open Lesson 1.6.1.5 Privacy Issues Open Lesson 1.6.1.6 Open Source and Proprietary Software Open Lesson 1.6.1.7 Software Licences Open Lesson 1.6.1.8 Wider Impacts and Emerging Technologies Open Lesson 1.6.1.9 Review of Ethical, Legal, Cultural and Environmental Issues Open Lesson