CS04-02 Computer Science Watch
The CPU and the von Neumann model
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In this lesson
In this video you'll learn about the CPU and the von neumann model for GCSE Computer Science, with worked examples and the mistakes examiners report. By the end you'll be able to explain the von Neumann stored program concept - that instructions and data are held together in the same main memory - and state the role of main memory and of each named CPU component: the control unit, the arithmetic logic unit, the clock, a register, the buses that connect them and, for OCR, the cache.
What it covers
- 2:15 The parts inside only make sense once you know the job they share
- 4:22 Two more parts to place, and each one arrives the same way: a box, and the verb that goes on it
- 7:06 The wires between all of this
- 9:16 That is every part named
Key words
For: AQA GCSE 8525, Edexcel GCSE 1CP2, OCR GCSE J277
On the specification
| Board | Spec | Statement |
|---|---|---|
| AQA GCSE 8525 | 3.4.5 | Systems architecture |
| Edexcel GCSE 1CP2 | 3.1.1 | Hardware |
| OCR GCSE J277 | 1.1.1 | Architecture of the CPU |
For teachers
This GCSE Computer Science lesson teaches the CPU and the von Neumann model. By the end, students should be able to explain the von Neumann stored program concept - that instructions and data are held together in the same main memory - and state the role of main memory and of each named CPU component: the control unit, the arithmetic logic unit, the clock, a register, the buses that connect them and, for OCR, the cache. It works through four worked examples and the mistakes examiners report.