KwickClips Computer Systems · 39 sec · free
What is an instruction set?
Short answer. The list of machine code commands a CPU understands.
Which style do most phones use?
RISC.
Instruction sets
| Type | Found in |
|---|---|
| CISC | most laptops |
| RISC | most phones |
Remember
| Commands a CPU understands |
| Code must match the CPU |
Why won't some apps run on every CPU? Each CPU has its own command list, called an instruction set. C I S C has many complex commands. R I S C has fewer, simpler ones. It is the CPU's command list. Machine code must match it.
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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