Understand how and why a computer represents images, including the influence of resolution and colour depth. Notes: • An image consists of pixels that are converted into binary for computer processing. • Resolution is defined by the number of pixels in the image. • Colour depth refers to the bits used to represent each colour. • Increasing resolution and colour depth enhances both file size and image quality.

Quick explanation

Understand how and why a computer represents images, including the influence of resolution and colour depth. Notes: • An image consists of pixels that are converted into binary for computer processing. • Resolution is defined by the number of pixels in the image. • Colour depth refers to the bits used to represent each colour. • Increasing resolution and colour depth enhances both file size and image quality

• This point belongs to Text, sound and images, especially Text, sound and images outcomes.
• You need to be able to understand how and why a computer represents images, including the influence of resolution and colour depth. Notes: • An image consists of pixels that are converted into binary for computer processing. • Resolution is defined by the number of pixels in the image. • Colour depth refers to the bits used to represent each colour. • Increasing resolution and colour depth enhances both file size and image quality.
• The key ideas to know are Understand, Explain, and Describe.
• Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.