Objective of this lesson. Understand data archives and back-ups. Imagine a library. There are many different shelves Each shelf contains many books or CDs. Each book/CD is labeled with type and numbers (Eg. Zoology, 0001 to 0029) The library is very organised.
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Objective of this lesson
Understand data archives and back-ups
It is organised and allows people to access information.
A data archive is like a library.
Archive is a copy of data on durable storage media for long term storage and later access.
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Then what is a back-up data?
A back-up data is an extra copy of data that is important to you. It is to protect ourselves from losing this data.
Difference between an archive and a back-up?