Mon Prof Augmenté
Inside a Computer
Age 16 · Technology
A computer stores both its programs and its data in the same memory. A control unit directs operations, an arithmetic-logic unit calculates, and input/output devices exchange information through a shared bus.
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Age 16: open this week
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In the picture
- Memory warehouse: holds both program instructions and data in one memory.
- Control tower: directs the sequence of operations and coordinates the other parts.
- Calculating workshop: performs arithmetic and logic operations.
- Gatehouse: connects input and output devices to the outside world.
- Shared roadway: the bus that carries data, addresses, and control signals between parts.
Examples
- A laptop running a game: the game code and your saved score sit in the same RAM.
- A phone taking a photo: the camera sends image data through the shared bus to memory and then to the screen.
Key takeaways
- Programs and data share the same memory instead of living in separate stores.
- The bus is the common path that lets memory, control, calculation, and input/output exchange signals.
Quiz: Inside a Computer (Age 16)
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According to the card, where are a computer’s programs and data stored?
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What does the control unit do?
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What is the bus in the computer?
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