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Computing Academy GCSE Computer Science

Advantages Fast read /

Advantages Fast read / write access Robust as no moving parts Low power consumption Disadvantages Small capacity Very expensive Limited life (100,000 writes) Silent operation Persistent (not volatile) Cloud Storage People like to be able to access their files, music, photos and more from anywhere at any time. Rather than using secondary storage such as HDDs or SSDs to store these types of files, people are increasingly turning to cloud storage. Cloud storage may sound very science fiction, but all this means is that rather than storing your data on your own HDD or SSD, you instead upload it to the Internet where it is stored on a HDD or SSD in another computer or server. In order to access your files you can now simply login to your cloud storage system from any computer or device as long as you have an Internet connection. At the time of writing popular cloud storage solutions include: Google Drive, Dropbox and iCloud. Task Investigate the different types of permanent storage available. What is the typical size and cost for a HDD or SSD in a computer today? 29

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