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UNIT R001: Understanding Computer Systems

UNIT R001: Understanding Computer Systems. Storing Data. Log on. Think about all the data that is stored about you (write it down) Create a diagram to show What data is stored – my name Where this data is stored – on a computer How it is collected – via twitter.

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UNIT R001: Understanding Computer Systems

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  1. UNIT R001: Understanding Computer Systems

  2. Storing Data

  3. Log on Think about all the data that is stored about you (write it down) Create a diagram to show What data is stored – my name Where this data is stored – on a computer How it is collected – via twitter

  4. What is a back up? Find out Draw a picture that represents a back up

  5. What is a back up? • “An external second copy of the data that is stored away from the site” • “making copies of data (your work) so that these second copies may be used to restore the original after a data loss event. “ • “These additional copies are typically called backups. ... • iCloud, memory stick, dropbox, Xbox1, mobile phone

  6. TEACHER TASK Task one students copy done a very important document Then take a picture of it compare the methods

  7. How often should you back up?

  8. When and Why? • Always save a copy of the files • Use a pendrive, CD, portable hard disk or suitable device. • Store in a safe place • Keep back ups regularly

  9. A video example http://www.youtube.com/watch?v=pxGIwTxpKYI&feature=related

  10. BACK UP METHOD Investigate one of the following back up methods, • Full (easy) • Incremental (medium) • Differential, (a challenge) When do you use it, how often, advantages / disadvantages, how long does it take?

  11. Incremental Files Only files modified are copied

  12. Full Back Up Files All Copied

  13. Differential Files All files that are different since the last full back up

  14. Grandfather Father Son

  15. Grandfather Father Son

  16. Make an Animation • Create an animation showing how a back up works • Include the methods • Frequency • Tips and trips

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