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Representing Text, Sound and Images in a Computer

10th Grade · Technology · UK GCSE

9 lessons

Goal

Understand how text, sound and images are represented digitally and calculate file sizes.

9 lessons
0 of 9 done
  1. Representing Text with ASCIIUp next
  2. Unicode: Representing Characters Beyond ASCIINot started yet
  3. Calculating the Size of a Text FileNot started yet
  4. Representing Sound as Digital DataNot started yet
  5. Sample Rate, Bit Depth and Sound QualityNot started yet
  6. Calculating the Size of a Sound FileNot started yet
  7. Representing Images as Bitmaps of PixelsNot started yet
  8. Resolution, Colour Depth and Image File SizeNot started yet
  9. Data Compression: Lossy and Lossless MethodsYou are here
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Learning standards covered

gbCS-7General Certificate of Secondary Education (GCSE) · Computer-science · 10th Grade

Understand representation of text, sound, and graphics