19. OCR A Level (H046-H446) SLR4 - 1.2 Device drivers
18. OCR A Level (H046-H446) SLR4 - 1.2 BIOS
10. OCR A Level (H046-H446) SLR3 - 1.1 Magnetic, flash and optical storage
116. OCR A Level (H046-H446) SRL18 - 2.1 The nature of abstraction
114. OCR A Level (H046-H446) SLR17 - 1.5 Moral, social & ethical issues part 4
121. OCR A Level (H046-H446) SLR19 - 2.1 Determining preconditions
20. OCR A Level (H046-H446) SLR4 - 1.2 Virtual machines
4. OCR A Level (H466) SLR1 - 1.1 Pipelining
120. OCR A Level (H046-H446) SLR19 - 2.1 Identify inputs & outputs
24. OCR A Level (H046-H446) SLR5 - 1.2 Translators
13. OCR A Level (H046-H446) SLR4 - 1.2 Need for operating systems
17. OCR A Level (H046-H446) SLR4 - 1.2 Types of operating system
9. OCR A Level (H046-H446) SRL3 - 1.1 Input, output and storage devices
22. OCR A Level (H046-H446) SLR5 - 1.2 Utilities
61. OCR A Level (H446) SLR11 - 1.3 Network security threats
89. OCR A Level (H046-H446) SLR14 - 1.4 Data structures part 3 - Stacks & queues
15. OCR A Level (H046-H446) SLR4 - 1.2 Interrupts
14. OCR A Level (H046-H446) SLR4 - 1.2 Paging, segmentation and virtual memory
23. OCR A Level (H046-H446) SLR5 - 1.2 Open vs closed
11. OCR A Level (H046-H446) SLR3 - 1.1 RAM and ROM