UNIT A 451 Computing Hardware Secondary Storage Storage

You are a spy You have broken into the secret enemy compound You have

CI AFB IKG BDN ABB C UKC NNU SA CIA FBI KGB DNA BBC

Learning Outcomes 1. Explain the need for secondary storage 2. Be aware of a

A bit – the smallest measure of memory A 1 2 3 4 5

Task • How many different ways are there to save / store information •

Storage devices • Optical (e. g. CD and DVD for data storage) • Magnetic

Task • Draw one of these storage devices • Line up in order of

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UNIT A 451: Computing Hardware: Secondary Storage

Storage and Memory

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. 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 18 January 2022

18/01/2022 IS 50004 A 8

A bit – the smallest measure of memory A 1 2 3 4 5 6 7 8

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 A 3 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 LO

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? 18 January 2022

18/01/2022 IS 50004 A 14