Selecting a storage device
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Lesson details
Key learning points
- In this lesson, we will systematically compare and select storage devices for a given situation. The second half of the lesson explores the limits of physical storage and how cloud storage can fill the gaps. We will examine cloud storage and explore questions about the impacts of cloud storage.
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This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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6 Questions
Q1.
Optical storage uses light to store data on discs. What device does it use to mark the discs?
A chisel
A light bulb
A magnet
Q2.
The marks and gaps on an optical storage disc are called...
Dots and dashes
Peaks and troughs
Ups and downs
Q3.
Magnetic storage also uses discs to store data. What are the discs inside a hard-drive called?
Disquettes
DVDs
Magnets
Q4.
Magnetic hard-drives use moving parts to store and read data. Which parts of a hard-drive move when it is operating? (Select all that apply)
The outer casing
The output connector
Q5.
When comparing storage devices you should be able to comment on the cost per GB of each type. Which type of storage is the most expensive?
Magnetic
Optical
They are all the same
Q6.
Which type of storage typically has the largest capacity? (Can hold the most data)
Optical
Solid state
They are all the same
3 Questions
Q1.
Ifram wants to store his Python projects on a portable device that he can take with him to work and school. What of the following storage devices would be best for Ifram?
A CD ROM
A hard-drive
An SSD
Q2.
Cloud computing is a way to store and access files using which technology?
A CD reader
A USB connection
Radio waves
Q3.
Where do files go when we store them on the cloud?
The ground
The internet
The sky