2. OCR A Level (H406-H466) SLR1 - 1.1 Fetch, decode, execute cycle
OCR Specification Reference AS Level 1.1.1b A Level 1.1.1b In this video we take a closer look at how a CPU actually works by following the stages of the Fetch-Decode-Execute cycle and seeing the effect it has on the various registers. Key question: How does a CPU work? 00:00 Fetch-decode-execute cycle 00:10 Intro 00:15 What is a computer? 01:53 The fetch stage 03:32 The decode stage 04:55 The execute stage 06:09 What does this program do? 06:32 Program branching 08:24 Program branching: Decode and execute stage 09:09 Program branching: Fetch stage 09:27 Key question 09:37 "What does this program do?" - The answer 12:48 Outro For full support and additional material please visit our web site http://craigndave.org Why do we disable comments? We want to ensure these videos are always appropriate to use in the classroom. However, we value your feedback, and are happy to consider amendments due to inaccuracies. Please get in touch with us directly at: [email protected]
3. OCR A Level (H406-H466) SLR1 - 1.1 Performance of the CPU
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Fetch Decode Execute Cycle in more detail
