Representing selection in a flowchart
A A diagram that shows a process, made up of boxes representing steps, decision, inputs and outputs. uses a diagram to explain the steps of an A sequence of logical instructions for carrying out a task. In computing, algorithms are needed to design computer programs..
Consider this simple six-step algorithm for comparing your dog’s age with your own:
- ask how old the dog is in human years
- multiply human years by seven to find out how old the dog is in dog years
- print answer on the screen
- ask how old you are
- if the dog’s age in dog years is older than your age, say ‘Your dog is older than you!’
- otherwise, say ‘Your dog is not older than you.’
In a flowchart, this sequence would look like this: