Learning Focus - Images

• Explain how an image is represented as a series of pixels represented in binary
• Describe the metadata included in the file
• Describe the effect of colour depth and resolution on the size of an image file
• Calculate the size of an image file

Task

• Login to OCR Cambridge Computer Science Website

https://cambridgegcsecomputing.org/representation-of-data-in-computer-systems-main

36 - Images

• Complete the interactive tasks and the worksheets
• Watch this unit video to your left
• Upload your work to the Y10 folder below

OCR website CLICK HERE

Click this link to upload your work to the Year 10 folder

Learning Focus - Sound

• Explain how sound can be sampled and stored in digital form
• Explain how sampling intervals and other factors affect the size of a sound file and the quality of its playback:
  • Sample size
  • Bit rate
  • Sampling frequency
  • Calculate the size of an audio file

Task

• Login to OCR Cambridge Computer Science Website

https://cambridgegcsecomputing.org/representation-of-data-in-computer-systems-main

38 - Sound

• Complete the interactive tasks and the worksheets
• Watch this unit video to your left
• Upload your work to the Y10 folder below

OCR website CLICK HERE

Click this link to upload your work to the Year 10 folder