SLR 03 – Input output and storage 9. OCR A Level (H046-H446) SRL3 – 1.1 Input, output and storage devices 10. OCR A Level (H046-H446) SLR3 – 1.1 Magnetic, flash and optical storage 11. OCR A Level (H046-H446) SLR3 – 1.1 RAM and ROM 12. OCR A Level (H046-H446) SLR3 – 1.1 Virtual storage