Revision cards for AQA AS INFO1 Storage
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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What is a storage device? | The physical hardware that reads the data
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What is a storage medium? | The surface on which the data is stored
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Storage devices | Hard drive; optical drive; card reader
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Storage media | Magnetic - hard disk (internal or external), DAT tape
Optical - CD, DVD, Blu-ray
Solid state - flash memory (e.g. SD) and USB sticks
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3 different types of CD/DVDs | ROM - Read only
R - write once then read only
RW - rewriteable
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Criteria for choosing a storage method | Volume of data
Purpose of storage
Need for rewriting
Speed of recovering data
Size of device
Need for portability
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