Computer architecture


Block diagram of a basic computer with uniprocessor CPU. Black lines indicate data flow, whereas red lines indicate control flow. Arrows indicate the direction of flow.

In computer engineering, computer architecture is a set of rules and methods that describe the functionality, organization, and implementation of computer systems. The architecture of a system refers to its structure in terms of separately specified components of that system and their interrelationships.[1]

Some definitions of architecture define it as describing the capabilities and programming model of a computer but not a particular implementation.[2] In other definitions computer architecture involves instruction set architecture design, microarchitecture design, logic design, and implementation.[3]

  1. ^ Dragoni, Nicole (n.d.). "Introduction to peer to peer computing" (PDF). DTU Compute – Department of Applied Mathematics and Computer Science. Lyngby, Denmark.
  2. ^ Clements, Alan. Principles of Computer Hardware (Fourth ed.). p. 1. Architecture describes the internal organization of a computer in an abstract way; that is, it defines the capabilities of the computer and its programming model. You can have two computers that have been constructed in different ways with different technologies but with the same architecture.
  3. ^ Hennessy, John; Patterson, David. Computer Architecture: A Quantitative Approach (Fifth ed.). p. 11. This task has many aspects, including instruction set design, functional organization, logic design, and implementation.

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