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Data representation

Data representation

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Question 1

Maya wants to store a high-quality sound effect file.

  • The sampling frequency is 32 kHz.
  • The bit-depth is 24 bits.
  • The analogue signal lasts for 450 seconds.

Construct an expression to show how the file size, in bytes, is calculated.

You do not need to perform the final calculation.

[4]
Markscheme

Data representation Questions

  1. IGCSE
  2. /Computer Science
  3. /Data representation

21 exam-style questions on Edexcel IGCSE Computer Science Data representation. Each one has a worked solution and a mark scheme showing where the marks go.

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