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AQA INFO1 S3

Revision cards for AQA AS INFO1 Storage

QuestionAnswer
What is a storage device? The physical hardware that reads the data
What is a storage medium? The surface on which the data is stored
Storage devices Hard drive; optical drive; card reader
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
3 different types of CD/DVDs ROM - Read only R - write once then read only RW - rewriteable
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
Popular Computers sets

 

 



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