Concept of Computer Architecture and Organization

The Concept of Computer Architecture and Organization teaches you everything you need to know about a computer system‘s internal workings, structure, and execution.

Organization, on the other hand, explains how the method is configured so that all of the computer resources can be used correctly.

Concept of Computer architecture

Computer Architecture is a structural and behavioral design of a computer system which is made by the integration of hardware components.

In computer architecture, we can understand the functionalities of a system. It deals with high-level design issues.

Computer Architecture
  • It is a visible structure of a computer system which is referred to as architecture.      
  • System architects can view architecture in terms of instructions, addressing modes, and register.
  • Computer Architecture participates in Logic (Addressing modes, Instruction sets, Data types, Cache optimization).

Types of Computer Architecture

Von Neumann Architecture

Von Neumann Architecture – A type of Computer Architecture

John von Neumann wrote his first book on architecture in 1945.

A Control Unit, Arithmetic and Logic Unit (ALU), Memory Unit, Registers, and Inputs/Outputs are all part of his computer architecture design.

The Von Neumann architecture is built on the idea of a stored-program machine, which stores all instruction and program data in the same memory. Most computers still use this style.

Harvard Architecture

Harvard Architecture – A type of Computer Architecture

Instructions and data are both stored in the same memory in a typical machine that follows von Neumann’s architecture. As a result, the same buses are used to transport both instructions and data.

This means that the CPU can’t do both (read the instruction and read/write data) at the same time.

Harvard Architecture is a computer architecture that involves separate instruction and data storage and separate buses (signal paths).

It was created primarily to solve Von Neumann Architecture’s bottleneck. The key benefit of providing differentiated instruction and data buses is that the CPU can access all instructions and data at the same time.

Concept of Computer Organization

In Computer Architecture and Organization, Computer Organization is concerned with the behavior and structure of a computer system as seen by the user. It works as an interface between hardware and software.

Computer Organization

In a computer organization, we can know how “all the units in the system” are arranged and interconnected. It expresses the realization of architecture.

An organization provides in-depth knowledge of internal working, structuring, and implementation of a computer system.

Computer organization defines the way a system is structured so that all those cataloged tools can be used. The significant components of Computer organization are CPU, ALU, memory, and memory organization.

Difference between Computer Architecture and organization

Computer Architecture Computer Organization
The way hardware components are linked to form a computer device is referred to as computer architecture. The configuration and action of a computer system as observed by the user is the topic of computer organization.
Architecture can be interpreted in terms of instructions, addressing modes, and registers by a programmer. It is concerned with the components of a system’s relation.
It serves as a connection between the hardware and software worlds. Software organization explains how all of the system’s elements are connected and organized.
Computer architecture aids in the comprehension of a system’s functions. Organization, on the other hand, signifies the actualization of architecture.
The architecture of a computer system is taken into account first when constructing it. Architecture is used to create an organization.
The field of computer architecture is concerned with high-level design problems. Low-level architecture problems are dealt through Computer Organization.
Logic (instruction sets, addressing modes, data types, etc.) is included in the architecture. Physical Components Play a Role in Organization (Circuit design, Adders, Signals, Peripherals)
A side by side comparison between Computer Architecture and organization

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