PC Architecture - Four-Layer System Diagram

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About This Architecture

Four-layer PC architecture diagram illustrating the complete data flow from input devices through processing, storage, and output stages. Input devices like keyboard, mouse, and microphone connect to the CPU, while the GPU handles display input, and all components interface via the motherboard bus. The processing layer coordinates CPU and GPU operations with RAM, feeding data to storage via SSD primary and HDD secondary drives. This layered model demonstrates how modern PCs organize hardware into logical tiers, essential for understanding system design, troubleshooting bottlenecks, and optimizing component selection. Fork this diagram on Diagrams.so to customize for educational materials, system specifications, or hardware upgrade planning.

People also ask

How does a PC organize its hardware components into functional layers?

A PC uses four layers: input (keyboard, mouse, microphone), processing (CPU, GPU, RAM, motherboard bus), storage (SSD, HDD), and output (monitor, speakers, printer). Data flows from input devices through the CPU and GPU, which coordinate with RAM and storage via the motherboard bus, then to output devices.

PC Architecture - Four-Layer System Diagram

AutointermediatePC hardwaresystem architecturecomputer componentsCPU GPU RAMstorage hierarchyeducational
Domain: Mechanical EngineeringAudience: Computer science students and IT professionals learning PC hardware architecture
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Created by

March 18, 2026

Updated

March 18, 2026 at 6:50 PM

Type

architecture

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