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Welcome! Today we will learn how computers take in information and show us results.
Computers need information to work. An input is data or an event you send to a computer.
Pressing a key or clicking a mouse is an input event. The computer receives this event to start a sequence.
An output is what the computer gives back. It can display text, show a picture, or make a sound.
We use a design process to solve problems. We decide what inputs we need and what outputs to show.
✏️ Worked example
Design a program that says 'Good morning!' when a student presses the spacebar.
- Identify the everyday problem: We want a polite morning greeting.
- Choose the input event: Pressing the spacebar key.
- Choose the output: Displaying the words 'Good morning!' on the screen.
- Create the sequence: When spacebar pressed -> print 'Good morning!'
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