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Lesson 8 of 9

6 min

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Before the quiz, a quick cheat-sheet of the whole track.

How a computer works: from a tap to what stays kept
IdeaWhat to remember
The loopA computer takes input, processes it, gives output and can store it.
The main partsThe processor does the work. Memory holds it now. Storage keeps it.
Input and output devicesInput devices send things in. Output devices send results out.
Hardware and softwareHardware is the parts you can touch. Software is the instructions.
Memory and storageMemory forgets at power off. Storage keeps what you saved.
Files and foldersA file is one saved thing. A folder groups related files.

You type a message. It appears on the screen. Which part of the loop is your typing?

  • Process
  • Input
  • Storage

Which part does the work, step by step?

  • Memory
  • Processor
  • Storage

You say a word. A speaker plays it back. Which is the input device?

  • The speaker
  • The microphone
  • The printer

Which of these is hardware?

  • A maths quiz app
  • The processor inside the case
  • A drawing program

You type three lines and save. You type two more. The power goes off. How many lines come back?

  • 0
  • 3
  • 5

Photos and homework files sit mixed in one long list. What makes them easier to find?

  • Give every file the same name.
  • Put photos in one folder and homework in another.
  • Delete half of them.

Next: Intro Programming with Blocks. Snap instructions together and watch a character follow them.

Reveal every answer to finish this lesson.