Understanding Computer Buses and I/O: From Data Bus to Linux Drivers

This article explains how computer buses work, the different types of buses, the role of I/O device interfaces, device controllers, DMA and interrupt controllers, and how Linux implements device drivers to provide a unified I/O subsystem.

Bus ArchitectureDMADevice Drivers

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Understanding Computer Buses and I/O: From Data Bus to Linux Drivers

Liangxu Linux

Feb 23, 2020 · Fundamentals

Understanding the Core Components of Modern Operating Systems

This article provides a comprehensive overview of operating system fundamentals, covering hardware components, kernel and user modes, CPU architecture, memory hierarchy, caching strategies, I/O devices, bus systems, boot processes, and various types of operating systems from mainframes to embedded devices.

Boot ProcessCPU designI/O devices

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Understanding the Core Components of Modern Operating Systems