UNIT R001: Understanding Computer Systems
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Transcript of UNIT R001: Understanding Computer Systems
UNIT R001: Understanding Computer
Systems
Storage and Memory
19/04/2023 IS50004A 3
You are a spy
You have broken into the secret enemy compound
You have 15 seconds to memorise the code
CI AFB IKG BDN ABB C UKC NNU SA
CIA FBI KGB DNA BBC UK CNN USA
How many can you remember
Learning Outcomes
1. Be aware of a range of storage devices
2. Know what the common features are such as use, advanatges / disadvatages, and size
3. Know which storage device to use for saving or storing
Wednesday 19 April 2023
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A bit – the smallest measure of memory
A
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 disks (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 devices (e.g. routers, modems)• Cloud storage
Task• Draw one of these storage devices• Line up on 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
19/04/2023 IS50004A 14