Text, sound and images
31 past-paper questions on Text, sound and images · examined 2020–2025.
20256 questions
Give the size of the image file in kibibytes (KiB).
State what is meant by a colour depth of 32 bits.
Explain what effect changing the colour depth to 64 bits has on the image file.
Explain how the image file is compressed using lossless compression.
The size of an image file is 1000 bytes. Give the size of the image file in bits.
The size of a sound file is 4096 mebibytes (MiB). Give the size of the file in gibibytes (GiB).
20241 question
A 16-bit colour image has a resolution of 512 pixels wide by 512 pixels high. Calculate the file size of the image in kibibytes (KiB). Show all your working.
20231 question
State what is meant by the sample rate and sample resolution.
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