SLR18 – Input & output devices AQA A’Level SLR18 Input and output devices AQA A’Level SLR18 Magnetic, optical and flash storage AQA A’Level SLR18 Comparing capacity and speed of storage media Also in this topic... SLR07 – Regular & context free languages SLR09 – A model of computation SLR11 – Binary SLR13 – Coding sound & music SLR20 – Communication