If you’ve used ChatGPT-like tools, you’ve probably wondered: how does a machine produce answers that sound so human?

It’s tempting to think an LLM is “thinking” behind the scenes. But the real story is more practical—and more interesting.

An LLM doesn’t wake up intelligent. It goes through a lifecycle: it’s built, trained, refined, and finally served to users at scale.

Some problems look simple on the surface, but they hide an uncomfortable truth: one computer just isn’t enough.

Think about weather prediction. It’s not “will it rain tomorrow?” It’s: how do temperature, pressure, humidity, wind, oceans, mountains, and sunlight interact over time—across an entire planet—minute by minute?

Or consider Google Maps traffic updates. You’re not only asking for the shortest route. You’re asking for the best route right now, while accidents happen, roads close, traffic lights change, and millions of other drivers make decisions at the same time.

Even Netflix recommendations are a massive puzzle: millions of users, huge libraries of content, and constantly changing behavior. The system has to learn patterns quickly and update predictions continuously.

These aren’t “hard” because the idea is complicated. They’re hard because they’re too big, too fast, or too complex for one machine to keep up.

So here’s the question that leads to High Performance Computing:

What if thousands of computers could work together like one?

Linux is an operating system kernel. It was originally written in 1991 by Linus Torvalds for his personal use, and it was soon adopted as the kernel for the GNU operating system, which was written to be a free (libre) replacement for Unix.

So, what even is GNU/Linux? What is free software? You must have so many more questions! Through this blog, we will try to understand what is linux, and why it is the most popular operating system in the world.

All opinions stated in this article are completely of my own.

So, does the Indian Army need a new main battle tank? The answer is pretty much yes, it does.

A main battle tank fulfills the role of armor-protected direct fire of many modern armies. It is the most important piece of equipment in any modern army. Many countries with tank building histories (such as USA, Russia, Germany, UK, etc) are continously developing advanced technologies, to improve the said vehicle. India operates roughly 5000 tanks today, all of which belong to the soviet/russian T-72 family. Around 2500 are the T72B models (Ajeya), and another 2500 roughly, are T90Ss, known as the Bhisma. The T90 is based on the T72 chassis, has modern equiement, and a newer cast hull. Hence it inherits the same types of flaws the T72s have.