The latest articles on DEV Community by Vedant (@vedamnn). https://dev.to/vedamnn https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4039355%2Fdc228009-87fb-4e46-ae6a-aed4c454da66.gif https://dev.to/vedamnn en Vedant Tue, 21 Jul 2026 06:35:37 +0000 https://dev.to/vedamnn/how-does-code-make-hardware-work-systemsprogramming-embeddedsystems-1hgm https://dev.to/vedamnn/how-does-code-make-hardware-work-systemsprogramming-embeddedsystems-1hgm <p>Have you ever wondered how a few lines of code can make your keyboard respond ⌨️, your SSD store data 💾, or your GPU render millions of pixels every second? 🎮<br> At first glance, it almost feels like magic.<br> We write code.<br> The CPU executes it.<br> The hardware somehow responds.<br> But... what actually happens in between? 🤔<br> <a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F41j9rar3himf8yl5p5zj.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Farticles%2F41j9rar3himf8yl5p5zj.png" alt=" " width="800" height="1200"></a><br> How does software communicate with physical electronics?<br> More importantly...<br> How does a device know that the CPU wants to talk to it and not to something else?<br> These questions led me down a fascinating rabbit hole into computer architecture and operating systems.<br> I realized that the CPU doesn't naturally understand concepts like a keyboard, GPU, SSD, or even a mouse. It simply executes instructions and works with addresses.<br> Everything else is built on top of carefully designed mechanisms that allow software and hardware to communicate efficiently.<br> And understanding those mechanisms isn't just useful for operating systems.<br> It's also one of the foundations for understanding device drivers, reverse engineering, firmware, and even advanced cybersecurity concepts. 🔐<br> This post is the beginning of a series where I'll document my journey into the systems that make modern computers work—from silicon to security. ⚙️</p> <p>Next up:<br> If the CPU doesn't know what a keyboard or GPU is... how does it communicate with them?</p> assembly computerscience architecture iot Vedant Tue, 21 Jul 2026 06:33:48 +0000 https://dev.to/vedamnn/-2ncg https://dev.to/vedamnn/-2ncg