Track quiz
Before the quiz, a cheat-sheet of the six ideas.
| Idea | What to remember |
|---|---|
| What is a computer? | A computer does exactly what its instructions say. |
| Exact instructions | An exact instruction leaves nothing to guess. |
| What is a program? | A program runs its steps in order. |
| Screens and pixels | A picture on a screen is a grid of pixels. |
| The internet | The internet passes a message from computer to computer. |
| Meeting AI | An AI learns from examples, and it can be wrong. |
A computer follows the step "double the number". You put in 4. What comes out?
A computer knows you are happy when it beeps.
Which instruction is exact?
A program has two steps: "turn right", then "move 1". You swap them. What happens?
A picture grid has 8 rows and 8 columns. How many pixels is that?
What is a pixel?
A message goes from you to A to B to your friend. How many hops is that?
Where is "the cloud"?
A calculator always shows 4 for 2 + 2. What kind of program is it?
An AI answer sounds very sure. What should you do?