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EnglandComputer ScienceQuick questions
1.2 Memory and storage
Quick questions on Representing characters, images and sound - OCR GCSE Computer Science J277
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State what is meant by the colour depth of an image. [1 mark]
What is q2?Show answer
An image is 100 by 100 pixels at 2 bits per pixel. Calculate its size in bytes, ignoring metadata. [2 marks]
What is q3?Show answer
State one difference between ASCII and Unicode. [1 mark]
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