KwickClips Computer Systems · 40 sec · free
What are the three steps?
Short answer. Fetch, decode, execute.
What does the program counter do?
Holds the address of the next instruction.
Remember
| Fetch, decode, execute |
| Program counter points to next |
What does a CPU do billions of times a second? It fetches an instruction from memory. It decodes what it means. It executes it. Then it repeats. Fetch, decode, execute. The program counter points to the next one.
This clip is from the full lesson: Inside the CPU: Fetch-Decode-Execute, Cores, Cache and Clock Speed — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083), ISC Class 11 Computer Science (868)
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