Secondary Storage.

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Presentation transcript:

Secondary Storage

What is storage? What is the need for secondary storage?

Optical storage Optical storage is the storage of data on an optically readable medium. Data is recorded by making marks in a pattern that can be read back with the aid of light, usually a beam of laser light precisely focused on a spinning disc

Magnetic strip a strip of magnetic material on which information may be stored, as by an electromagnetic process, for automatic reading, decoding, or recognition by a device that detects magnetic variations on the strip

Solid state Solid-state storage (SSS) is a type of computer storage media made from silicon microchips. SSS stores data electronically instead of magnetically

Cloud computing Use the internet to find out what is meant by the term “cloud computing”. http://www.youtube.com/watch?v=CUwcAoqFEpA&list=PL3Cs7s-B5Be4e2_Gi-2HCQ1jUXY-WtYan

Cloud Computing What is cloud computing? Find out 3 different companies that provide cloud services Find out the different applications of cloud computing.

Test your knowledge: What is storage? Why is it used? What is optical storage? Positives & negatives What is magnetic strip storage? What is solid state storage?

Q Define the characteristics of secondary storage and how it effects it?