0478.1.2.10 — • The resolution is the number of pixels in the image • The colour depth is the number of bits used to represent each colour • The file size: past paper questions
Real questions on 0478.1.2.10 — • the resolution is the number of pixels in the image • the colour depth is the number of bits used to represent each colour • the file size
The newest 15 of 15 written questions. Open one to see it on the real paper.
- 0478/12 · May/June 2025 · Q2c(i)[1]
State what is meant by a colour depth of 32 bits. (i)
See it on the paper → - 0478/12 · May/June 2025 · Q2c(ii)[2]
The colour depth of the image file is changed to 64 bits. Explain what effect this change has on the image file.
See it on the paper → - 0478/12 · February/March 2025 · Q2a[1]
State what is meant by the colour depth of an image.
See it on the paper → - 0478/13 · May/June 2024 · Q2a[1]
State what is meant by a 16-bit colour depth.
See it on the paper → - 0478/13 · May/June 2024 · Q2b[1]
The resolution of the image is changed to 750 × 1500 pixels. Give the effect this will have on the file size of the image.
See it on the paper → - 0478/11 · October/November 2023 · Q8a[2]
Storage can be described as being magnetic, solid-state or optical. Give two features of magnetic storage.
See it on the paper → - 0478/11 · October/November 2023 · Q8b[3]
Give three features of solid-state storage.
See it on the paper → - 0478/11 · October/November 2023 · Q8c[3]
Give one example of each type of storage.
See it on the paper → - 0478/21 · May/June 2023 · Q10a[2]
Give the name of the field that is most suitable to be the primary key. State the reason for this choice.
See it on the paper → - 0478/12 · February/March 2023 · Q4a[2]
Complete the table by defining each term about images. Image term Definition pixel resolution
See it on the paper → - 0478/13 · May/June 2022 · Q6a[1]
Tick (3) to show which type of data is stored in a JPEG file. Tick (3) Video Sound Image
See it on the paper → - 0478/12 · February/March 2022 · Q2a[1]
Give one example of an image format.
See it on the paper → - 0478/12 · February/March 2022 · Q2b[3]
Describe how a digital image file is stored by a computer.
See it on the paper → - 0478/12 · February/March 2019 · Q6c(ii)[6]
Nadia is considering purchasing a magnetic storage device. Describe how a magnetic storage device stores data.
See it on the paper → - 0478/12 · February/March 2019 · Q6c(iii)[2]
Give two advantages of using a magnetic storage device rather than a solid state storage device. Advantage Advantage
See it on the paper →
What examiners said
Many candidates were able to state that it would mean 32 bits are used to present a colour. Candidates need to make sure that they are accurate. It is clear that they mean it is 32 bits for a single colour and not all colours. It was also accepted for candidates to state that a single pixel would have 32 bits.
— Examiner report, May/June 2025, 0478/12 Q2(c)(i) (Cambridge)
Most candidates were able to explain the effect the change would have on the image file.
— Examiner report, May/June 2025, 0478/12 Q2(c)(ii) (Cambridge)
Candidates gave a range of responses to define colour depth. The most common ones included the number of bits per colour or the number of bits per pixel. A common error was stating it was the number of pixels per bit, or the number of pixels in an image. Some responses stated that it was the number of colours that the image used, these responses lacked precision because it is the number of colours...
— Examiner report, February/March 2025, 0478/12 Q2(a) (Cambridge)
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