Storage Flashcards

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1
Q

What does volatile memory mean

A

Volatile memory/storage is when the power to the component is switched off, it loses all data
For example the RAM - it only holds running programs

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2
Q

what is ROM memory

A

its Read Only Memory , it contains the operating system and it contains the bios too and it opens the OS from storage into ram

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3
Q

Types of secondary storage

A

Magnetic - HDD
Optical - DVD
Solid state - SSD
Cloud
Usb

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4
Q

Advantages and disadvantages of Magnetic storage

A

HDD are not very durable , noisy heavy large and can break easily and u can lose the data
Reliable with large capacity

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5
Q

Advantages and disadvantages of Optical storage

A

Advantages- portable and cheap
Disadvantages - low capacity not durable slow

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6
Q

Advantages and disadvantages of Solid state

A

Advantages - quick read and write speeds, durable no moving parts
Disadvantages - expensive

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7
Q

How does a magnetic hard disk work

A

Disk spinning at rates of around 5400 and 15000 RPM
data stored magnetically as binary on small areas called sectors - Data track split into sectors
Read and Write arm with a head that can move

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