IGCSEComputer ScienceCIETopic Questions1. Data Representation1.2 Text, Sound and Images

Text, Sound and Images (CIE IGCSE Computer Science)

Topic Questions

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1a
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The Unicode character set is used to represent text that is typed into a computer.

a)
Describe what is meant by a character set.
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1b
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b)
One disadvantage of using the Unicode character set, instead of the ASCII character set, is that the text stored takes up more storage space.

Give one reason why it takes up more storage space.
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2
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Nina is recording some music tracks that she has written. She is researching whether she should  record them in MIDI or MP3 format.

Explain what is meant by MIDI and MP3 format.

MIDI ......................................................................................

MP3 ......................................................................................

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