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GCSE Design and Technology · key term
A flowchart step that tests a condition and selects a route according to whether the answer is Yes or No.
Used by Edexcel
Specification 1.7.1 · Paper 1
Revise: Using FlowchartsA programmable component, such as a microcontroller, is a small computer built into a product. It follows instructions to read inputs, make decisions and control outputs. A switch can provide an input; a buzzer or LED can provide an output.
Label both routes leaving a decision with Yes and No, and make the question precise enough to answer either way.
Trace the routine for both possible answers to each decision. Check what happens next, not just which output is switched on.
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