unit r001: understanding computer systems
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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UNIT R001: Understanding Computer
Systems
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Storing Data
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LO
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
![Page 4: UNIT R001: Understanding Computer Systems](https://reader035.vdocuments.net/reader035/viewer/2022062720/5681334d550346895d9a52d7/html5/thumbnails/4.jpg)
LO
What is a back up?
• Find out• Draw a picture that represents a
back up
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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
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TEACHER TASK
• Task one students copy done a very important document
• Then take a picture of it compare the methods
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How often should you back up?
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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
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LO
http://www.youtube.com/watch?v=pxGIwTxpKYI&feature=related
A video example
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BACK UP METHOD
Investigate one of the following back up methods,
1. Full (easy)2. Incremental (medium)3. Differential, (a challenge)
When do you use it, how often, advantages / disadvantages, how long does it take?
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Incremental
FilesOnly files modified are
copied
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Full Back Up
Files All Copied
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Differential
FilesAll files that are different since the last full back up
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Grandfather Father Son
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Grandfather Father Son
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Make an Animation
• Create an animation showing how a back up works
• Include the methods• Frequency• Tips and trips