AQA A’Level SLR18 Magnetic, optical and flash storage
About this video
AQA Specification Reference
AS Level 3.7.4.2
A Level 4.7.4.2
Storage devices come in main flavours, but they fall into broad categories, in this video we take a look at three of the majors ones you need to be aware of: Magnetic, Flash and Optical.
Key questions:
- Why do we need secondary storage?
- What are the main differences between hard disks, optical storage and solid-state storage?
00:00 Magnetic, optical and flash storage
00:16 Intro
00:21 Need for secondary storage
02:36 Main types of storage drive
03:11 Optical storage
03:57 Magnetic storage
05:03 Solid-state/flash storage
05:51 Key questions
06:04 Outro
Last updated: 09.06.25
