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Cambridge IGCSE Computer Science practice

Paper 1 structured question: Data storage and compression

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Data storage and compression

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Paper 1Computer Systems2 marks

Calculating file sizes for digital media.

Description

Calculating Image File Size

An image has a resolution of 1920x1080 pixels and a color depth of 24 bits. Calculate the file size in KB.

  1. a

    Calculate Determine the file size of the image in KB.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 1 structured question: Data storage and compression

Paper 1Computer Systems2 marks

Description

Calculating Sound File Size

A sound file has a sample rate of 44100 Hz, a bit depth of 16 bits, and a track length of 5 minutes. Calculate the file size in MB.

  1. a

    Calculate Determine the file size of the sound file in MB.

    Aim for approximately 2 distinct marking points.

    [2]