Author: Raj Kumar
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How Does Linux Kernel Process Creation Happen? Step-by-Step for Beginners (2026)
Beginner’s guide to Linux kernel process creation. Learn fork(), exec(), advantages, disadvantages, applications, and FAQs with simple examples. If you’ve ever wondered “How does Linux actually create processes?”, you’re not alone. Process creation is one of the most fundamental tasks in any operating system, and in Linux, it’s handled in a very elegant way by…
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Master Message Queue in Linux (2026)
Beginner-friendly guide to Message Queue in Linux. Learn working, applications, advantages, disadvantages, and real-world use cases with examples. Introduction When multiple processes in Linux need to talk to each other, they use a mechanism called Inter-Process Communication (IPC). One of the most commonly used IPC methods is the Message Queue in Linux. A message queue…
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Master I2C Bus on Linux: A Beginner’s Guide (2026)
I2C Bus on Linux beginner-friendly guide with advantages, disadvantages, applications, and FAQs for embedded systems and IoT projects. If you are starting your journey in embedded systems or Linux device drivers, you will often come across the term I2C bus. It plays a major role in connecting sensors, displays, and other peripheral devices to Linux-based…
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Mater How is QNX different from Linux or other RTOS 7 Key Ways.
How is QNX different from Linux or other RTOS . Learn about kernel design, real-time performance, safety certifications, and use cases. When you first hear about QNX, you might think, “Isn’t it just another operating system like Linux or other RTOS (Real-Time Operating Systems)?” The truth is, QNX stands out in some very unique ways.…
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Critical Signals Used in SPI Communication You Must Know (2026)
Basic signals used in SPI communication MOSI, MISO, SCLK, and CS. Beginner-friendly guide with real-life examples for easy understanding Imagine you are in a busy kitchen. The head chef gives instructions, helpers listen, and everyone works in perfect sync to prepare a dish. In electronics, something very similar happens when devices “talk” to each other…
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Master Yocto Interview Questions for Professionals (2026)
Master Yocto Interview Questions for Professionals a complete beginner-to-pro guide with real-time scheduling, interrupts, task management, and practical embedded tips. It was a cold night of December when I was sitting in front of my laptop, sipping hot coffee, watching yet another bitbake build hang at 92%. The office was quiet, only the sound of…
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What is an RTOS, and How Does it Differ from a General-Purpose Operating System? (2026)
In the world of embedded systems and electronics, RTOS is a term that comes up very often. But what exactly is an RTOS, and how is it different from the general-purpose operating systems we use on our computers and smartphones? This article explains these concepts in simple, beginner-friendly language. What is an RTOS? RTOS stands…
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Master QNX OS and Hypervisor Most Asked Interview Questions (2026)
QNX OS Most Asked Interview Questions explained in a simple and beginner-friendly way. Learn about microkernel, message passing, scheduling, memory management, and debugging in QNX OS to prepare for your next embedded systems interview. If you are preparing for an interview where QNX OS is involved, you are in the right place. QNX (Quick UNIX)…
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What is CPU? Master Complete Beginner’s Guide (2026)
Learn what CPU (Central Processing Unit) is, its functions, types, and importance in real-time applications. Understand the brain of your device today It was a rainy afternoon, and Hima was sitting by her window, watching raindrops race down the glass. The soft patter of rain made her feel cozy as she sipped her tea and…
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Master How Does the Linux Process Scheduler Work? (2026)
Learn Linux Process Scheduler: how processes are created, scheduled, and managed. Explore CFS, real-time policies, and context switching Are you curious about how Linux manages multiple programs running simultaneously? If you’ve ever wondered how your system decides which process gets the CPU at a given time, you’re about to discover the fascinating world of the…