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OCR Computer Science > 1.1.3 Input, Output & Storage > Flashcards

1.1.3 Input, Output & Storage Flashcards

1
Q

State three types of storage.

A

Magnetic
Optical
Solid State

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2
Q

Give examples of magnetic storage.

A

Hard disk drive
Magnetic tape
Floppy disk

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3
Q

Give examples of optical storage.

A

CD
DVD
Blu-ray Disc

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4
Q

Give examples of solid state storage.

A

Flash memory
USB stick
Solid State Drive

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5
Q

Give examples of input devices.

A

Keyboard
Mouse
Microphone
Webcam
Touchpad
Barcode reader

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6
Q

Give an example of a device used for both input and output.

A

Touchscreen

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7
Q

What are pits in CDs?

A

Areas on a CDs surface burned into grooves by laser

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8
Q

What does CD stand for?

A

Compact Disc

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9
Q

Give examples of output devices.

A

Speaker
Monitor
Printer
Projector

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10
Q

State the order of CD, DVD, Blu-ray from lowest to highest storage capacity.

A

CD, DVD, Blu-Ray

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11
Q

What is mounted at the end of the actuating arm of a hard disk drive?

A

Read/write head

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12
Q

Whats the typical capacity of a hard disk drive?

A

500GB - 5TB

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13
Q

Give two disadvantages of SSDs.

A

High cost per GB
Limited lifespan

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14
Q

What does ROM stand for?

A

Read Only Memory

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15
Q

Describe the structure in which information is stored in flash memory.

A

Storage is in blocks, combined to form pages

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16
Q

What is meant by non-volatile?

A

Storage medium that does not lose its information when power is lost

17
Q

Which 2 logic gates of used in solid state storage?

A

NAND & NOR

18
Q

Give 3 advantages of solid state.

A

High transfer speeds
Lightweight
No moving parts

19
Q

What is ROM?

A

Non-volatile main memory storage used to store bootstrap instructions & firmware

20
Q

What is RAM?

A

Volatile main memory storage used to store data/instructions currently in use

21
Q

Give 3 disadvantages of optical storage.

A

Easily damaged
Relatively low storage capacity
Relatively slow transfer speeds

OCR Computer Science (29 decks)

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