Chapter 3 Flashcards

1
Q

What is the primary purpose of storage media in computing?

A

Storage media are used to hold data written and read by storage devices.

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2
Q

What are the three main types of storage devices and storage media?

A

There are three types of storage device and storage media: magnetic, optical and solid-state.

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3
Q

How is data written to and read from magnetic storage media like hard disk drives?

A

Data is written to, and read from, magnetic media such as hard disk drives using electromagnets. Media include hard disk drives and magnetic tapes.

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4
Q

Give examples of storage media that fall under the category of magnetic media.

A

hard disk drives and magnetic tapes.

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5
Q

Explain the principle behind writing and reading data from optical drives.

A

Data is written to, and read from, optical drives using a laser, which creates areas that reflect light and areas that do not reflect light. Media include
CDs, DVDs, Blu-ray.

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6
Q

Name some common types of optical media used for storage.

A

Media include
CDs, DVDs, Blu-ray.

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7
Q

Differentiate between ROM. R. and RW disks in terms of their functionality.

A

ROM disks are read only; R disks can be written to once only; RW disks can be written to many times.

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8
Q

What distinguishes solid-state storage devices from traditional hard drives, and where are they commonly used?

A

Solid-state storage devices have no moving parts, are used inside laptops and some new computers to replace traditional hard drives. They use flash memory.

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9
Q

Define the purpose and portability of flash memory cards in storage.

A

Flash memory cards are portable memory.

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10
Q

What are memory sticks or pen drives, and what makes them different from other storage devices?

A

Memory sticks/pen drives are small solid-state drives, with a lot of storage space.

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11
Q

How do advantages and disadvantages of each storage type impact the selection of storage media for specific use cases?

A

I There are different advantages and disadvantages to each storage type so they are usually chosen based on the amount of the data they can store, frequency of access required and whether new data needs to be written.

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