UNIT A451: Computing Hardware: Secondary Storage
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Transcript of UNIT A451: Computing Hardware: Secondary Storage
You are a spy
You have broken into the secret enemy compound
You have 15 seconds to memorise the code
How many can you remember
Learning Outcomes
1. Explain the need for secondary storage
2. Be aware of a range of storage devices
3. Select suitable storage devices and storage media
4. Know which storage device to use for saving or storing
Wednesday 19 April 2023
LO
Task
• How many different ways are there to save / store information
• Compare what information you could or could not store - for example a telephone number on A3 paper would be a waste.
LO
Storage devices
• Optical (e.g. CD and DVD for data storage)
• Magnetic media (e.g. internal and external hard disk drives (HDD), tape)
• Solid State Drives (SSD), Memory cards, i.e. flash memory devices
• Network (e.g. routers, modems)• Cloud storage
Task• Draw one of these storage devices• Line up in order of size• Think about the advanatges of the
device for storage• Line up again• Think about the dis-advanatges of the
device for storage• Line up • Which is the best device?
Wednesday 19 April 2023