KnowDigy

Recently, I came across something really interesting—Columbia University has created what they’re calling “artificial trees.” But these aren’t just fancy machines with a cool name. They actually help clean the air, just like real trees, but much faster!

 Have you ever wondered how your message actually travels from your phone to your friend's phone? When you type “Hi” and hit send, a lot happens behind the scenes within seconds. In this blog, I’ll explain this in a simple, beginner-friendly way , without heavy technical jargon.

  In recent years, voice technology has quietly taken over many aspects of our daily lives. From talking to Siri and Alexa to searching on Google using voice commands, millions of people interact with machines just by speaking. In 2025, voice technology is smarter, faster, and more integrated than ever before. But where did this trend start? And where is it heading?

  Have you ever ignored a “ Software Update Available ” message on your phone or computer? Many people see updates as annoying interruptions. But skipping them can leave your device slow, vulnerable, and outdated. In this blog, let’s understand  why software updates are important , what they actually do, and why you should never ignore them.

  Many people today worry that   technology and automation are replacing human jobs . With robots assembling products in factories and AI writing articles, it’s easy to believe that machines will soon take over everything. But is that really true? In this blog, let’s understand  what automation is , how it affects jobs, and why technology might be creating more opportunities than it removes.

  Many students and beginners think that learning to code is the only way to build a successful career in tech. While coding opens many doors,   it’s not the only path to success. In this blog, let’s explore  non-coding roles  in the tech world that still offer good salaries, career growth, and exciting work—without needing to write programs daily.

  AI tools like ChatGPT, GitHub Copilot, and AI-based code generators are becoming extremely popular among students and beginners in the programming world. While these tools are powerful, many beginners fall into the trap of completely depending on them. This over-reliance can actually harm your learning and limit your long-term growth as a developer. In this blog, let’s understand  why completely depending on AI is a mistake  and how to use AI tools wisely in your learning journey.

  Starting a tech career can be exciting, but beginners often make mistakes that slow down their growth. Learning to avoid these common traps will help you move forward more efficiently and become job-ready faster.

In today’s digital world, the tech industry offers a wide range of career options. Whether you’re a student or a career changer, choosing the right path can feel overwhelming. Should you become a software developer? A data scientist? A cybersecurity analyst? Or maybe a DevOps engineer? Or any other?

  In today’s tech world, databases are everywhere. From storing your Instagram photos to handling payments on Amazon, databases manage huge amounts of data behind the scenes. But beginners often feel confused seeing so many options: MySQL? MongoDB? PostgreSQL? Firebase? Oracle? So…  which database should you choose as a beginner?

  If you're a beginner and confused about   which programming language to learn in 2025 , you’re not alone! With so many options like Python, Java, JavaScript, and more, choosing the right starting point can feel overwhelming.

  Are you interested in becoming a web developer but confused about what path to choose? You may have heard terms like   frontend ,   backend , or   full-stack developer , but what do they actually mean? In this blog, I’ll explain each role clearly with examples, required skills, and pros and cons, so you can decide what suits you best.

 Have you ever wondered why some websites show the same information every time, while others display personalized content just for you? This is because websites are generally categorized into two types: Static Websites Dynamic Websites

 If you’ve ever wondered how websites are made, the answer usually involves  three core technologies : HTML  (HyperText Markup Language) CSS  (Cascading Style Sheets) JavaScript Together, these three are like the  foundation of every website  you see on the internet.

  Every website you visit—like YouTube, Amazon, or Facebook—has two main parts: Frontend (Client Side) Backend (Server Side)

  To start learning web development, beginners must understand some basic terms used frequently. Here's a clear, simple explanation of all the key terminologies.

  When you write a program, a lot happens behind the scenes before the computer can actually run it. Let’s understand the full journey from writing your code to seeing your program in action.

If you're new to programming, you might hear terms like "source code," "compiler," or "object code" and wonder what they really mean. Before you start writing your first program, it’s important to understand these basic concepts.

  When we write programs, we are essentially communicating with computers to make them perform specific tasks. But computers don’t understand human languages—they only understand instructions in a very basic form. This is where programming languages come in.

  What is Programming? Programming is the process of giving instructions to a computer to perform a task. These instructions are written in a language that computers understand, like Python, C, or Java.