Exam code: 4IT1
Gail uses digital devices for work.
A CD drive is a type of optical storage device.
(i) Give two other types of optical storage device.
[2]
(ii) One disadvantage of optical media is that it has a lower storage capacity than solid state media.
Explain two other disadvantages of using optical media rather than solid state media.
[4]
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Gail’s laptop uses memory management.
Which one of these is the largest amount of data?
0.2 GiB
2000 KiB
0.02 MiB
0.002 TiB
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Which one of these is the reason why screen resolution is important?
Higher resolution means larger screens have less pixellation
Higher resolutions cannot be used on larger screen sizes
Larger screens will pixellate more when users are further away
Lower pixellation is achieved with lower resolution screens
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Visitors usually bring a digital device to events at the venue.
The venue uses a barcode scanner that connects to the booking system.
Which one of these would represent the amount of data required to be sent by the barcode scanner to the booking system?
Byte
Gibibyte
Mebibyte
Tebibyte
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Camille uses digital devices for work.
A distance sensor is used as an input for an embedded system in a car.
Which one of these is another example of an input for a device?
LED
Monitor
Scanner
Speaker
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Camille’s laptop uses secondary storage.
Which one of these is a feature of a hard disk that allows data to be read?
It allows electrons to be stored
It is reflective
It is magnetically charged
It connects directly to the network
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Which one of these is the largest amount of data?
0.010 GiB
0.100 TiB
0.001 MiB
1.000 KiB
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Camille’s laptop uses secondary storage.
State two characteristics of hard disk drives that make them more suitable for use with servers than magnetic tape.
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Camille’s child, Sarah, uses websites and video sharing sites for her school work.
Sarah participates in an online meeting as part of a lesson.
State two peripheral output devices Sarah requires to participate in the online meeting.
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Camille designs controllers for a games console.
Controllers are input devices.
State two other peripheral input devices for a games console.
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Joe streams a radio show online.
State one type of input device that would be used to capture Joe’s voice.
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Joe’s computer has 8GiB of RAM.
Each recording uses 300MiB of RAM.
(i)
Construct an expression to show how many recordings can be stored in RAM at once.
[2]
(iii)
State two benefits of using storage, rather than RAM, to save the radio shows.
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Joe uses a laptop to record audio.
Which one of these would represent the minimum amount of data required to store a one‑hour, uncompressed audio recording?
Byte
Gibibyte
Kibibyte
Mebibyte
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Joe travels to play music at venues around the country and takes a music collection.
Discuss the benefits and drawbacks of the different storage media types available to Joe.
You should consider these points in your response:
different types of storage device
portability
capacity
compatibility
durability.
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