Computer Science · May / June 2026 · Paper 11 · Question 8
0478
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8(a)[3]
Any three from:
A character set is used …… that contains all the characters (that can be represented)It can use ASCII/UnicodeEach/a character is given/has a (binary) value8(b)(i)[5]
One mark for each correct term or definition.
term
description
pixel
the smallest unit of an image that is made up of one colour
sound sample
a (single) measure/representation of the
amplitude/height of a sound wave
(image)
the dimensions of an image
resolution
colour depth
the number of bits that are used for each/a
colour/pixel (in an image) // the (maximum) number of colours that can be represented (in an image) Sample/samplin
the number of samples that are recorded each g rate/frequency
second
8(b)(ii)[2]
Lossy // by example e.g. motion estimation
Lossless // by example e.g. RLE
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