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1.2.2 - Secondary Storage

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Total cards: 9•Content version: v4•Public deck•Updated: 8/1/2026

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#1
Front (Question)

Why is secondary storage needed?

Back (Answer)

Secondary storage is needed as it stores things indefinitely, even when the computer doesn’t have power. Without it, everything would be lost when you turn the computer off

#2
Front (Question)

Is secondary storage volatile or non volatile?

Back (Answer)

Secondary storage is non-volatile

#3
Front (Question)

Give the three common types of secondary storage

Back (Answer)

• magnetic • optical • solid state

#4
Front (Question)

Examples of magnetic storage

Back (Answer)

Hard disk drive

#5
Front (Question)

Examples of optical storage

Back (Answer)

CDs, DVDs, Blu-Ray

#6
Front (Question)

Examples of solid state storage

Back (Answer)

SSD, USB stick

#7
Front (Question)

What characteristics need to be taken into account when choosing a storage option? (6)

Back (Answer)

• Capacity • Speed - how fast it can read and write data • Portability - ease of transportation • Reliability - how much it can be trusted to function • Durability - resistance to damage • Cost

#8
Front (Question)

How does optical storage store data

Back (Answer)

• Different parts of the disk reflect light from a laser different as they have lands and pits • How the light is reflected determins if it is a 1 or a 0

#9
Front (Question)

How does magentic storage store data

Back (Answer)

• Different parts of the disk are magnetised differently • The read head detects hoe magnetised the section is and it is represented by a 1 or a 0 accordingly