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Storage Devices - Coggle Diagram
Storage Devices
Optical Disks
CDs, DVDs and Blu-Ray disks
commonly used for storing music, films, tv & software, for distribution by suppliers
optical storage
using a laser to mark the disks in a pattern, light is then bounced off the disk and is read back differently depending on whether the light bounces off a marked or non-marked area
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Disadvantages
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finite number of writes, CDRW disks can be written to around 1000 times
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USB Flash Drives
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commonly used for transferring data between different computers, as well as to back up our files
Advantages
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highly compatible with devices, USB Connector
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SD Cards
Secure Digital Card
very small memory card that is used commonly in digital cameras, as well as in mobile devices like smartphones
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Advantages
extremely small and portable, even compared to USB flash drives
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Disadvantages
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variety in SD cards. SD, SDHC, SDXS are common
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