Online worksheet ยท 2 of 4

What happens between input and output? - Online practice 2

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

Read before answering

System model: drawing app. Input: moving a pointer while drawing. Processing: using pointer positions to make a line. Output: the line shown on screen. A device may have several inputs and outputs; this card follows one route. Use the written model, not real private data or changes to a device's settings.

Worksheet preview

  1. What supplies input to the drawing app in this model?
  2. Distinguish the processing and output of this drawing app.
  3. Does seeing or hearing the drawing app output alone prove the result has been saved permanently?

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