Differences between Computer Architecture and Computer Organization

Computer Architecture:
Computer Architecture is a functional description of requirements and design implementation for the various parts of computer.It deals with functional behavior of computer system. It comes before the computer organization while designing a computer.

Architecture describes what the computer does.







Computer Organization:
Computer Organization comes after the decide of Computer Architecture first. Computer Organization is how operational attribute are linked together and contribute to realise the architectural specification. Computer Organization deals with structural relationship.

Organization describes how it does it.

Now, let’s see the difference between Computer Architecture and Computer Organization:

S.NO Computer Architecture Computer Organization
1. Architecture describes what the computer does. Organization describes how it does it.
2. Computer Architecture deals with functional behavior of computer system. Computer Organization deals with structural relationship.
3. In above figure, its clear that it deals with high-level design issue. In above figure, its also clear that it deals with low-level design issue.
4. Architecture indicates its hardware. Where, Organization indicates its performance.
5. For designing a computer, its architecture is fixed first. For designing a computer, organization is decided after its architecture.



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