Visualise the Invisible Things
3D USB Pen Drive with user interaction
A 3D visualization comparing Old Generations to new Generations USB 2.0, 3.0, and 4.0 data transfer speeds with Calculation.
View Simulation3D Simulation Mobile Call Flow The Invisible Path of a Mobile Call with user interaction
Interactive 3D Simulation: Why Your Phone Rings Instantly When Someone Calls even if no app is open and the processor seems idle. Discover how mobile telephony works through the hidden story of the Modem, Kernel, and Telephony magic.
View SimulationScenario 1:-Journey of Data Through a VPN – 3D Simulation with user interaction
A 3D journey showing how your data travels securely through VPN servers to unlock privacy, safety, and access worldwide.
View SimulationScenario 2:-Journey of Data Through a VPN – 3D Simulation with user interaction
A 3D journey showing how your data travels securely through VPN servers to unlock privacy, safety, and access worldwide.
View Simulation3D Simulation How Wi-Fi Works: From ISP to Your Device with user interaction
See the step-by-step journey of internet — from ISP to modem, router, and finally your device — explained in a simple flow.
View SimulationHow Firewalls Stop Hackers – 3D Animation
See how data flows, and how firewalls block man-in-the-middle attacks and see How Man-in-the-Middle Attacks Happen in 3D Animation.
View SimulationWhy Pen Drive Storage Appears Less When Plugged into a Computer Like 32GB To 29.5GB Why? View 3D Animation
Explore in 3D how your 32GB pen drive shrinks to 29.5GB — interact with the simulation and experience why storage appears less with Calculation
View SimulationInside the System & Mobile: How Data Becomes Visible in 3D
See how RAM, OS, cache, and processor work together to make data appear on your screen — experience it in 3D and learn something new..
View SimulationSpeed vs Delay – See the Real Internet Flow View 3D
Explore in 3D how Mbps (data capacity) and latency (packet travel time) work together to shape your browsing, gaming, and streaming experience.
View SimulationDynamic 3D Server Switching: How Apps Handle Busy or Down Servers Seamless Connection with Minimal Delay
When a server is busy or down, your app automatically connects to an alternate server. Watch in 3D how latency and Mbps adjust in real-time to keep your experience smooth and uninterrupted.
View SimulationHow a System Wakes Up When you Power on the system The Invisible Startup Story in 3D
When you press the power button, the system begins its hidden journey. First, POST (Power-On Self-Test) checks if the CPU, RAM, storage, and hardware are ready. Once verified, the booting process takes over — loading the operating system step by step until the computer is fully alive. This 3D simulation reveals the invisible path from POST to Booting, showing how a silent machine transforms into a working system.
View SimulationInteractive 3D Simulation of Operating System Process Scheduling how it works see the Visualise the Invisible Things
This project presents a 3D interactive visualization of how operating system schedulers — Long-Term, Medium-Term, and Short-Term — manage processes. Users can explore how jobs move from storage to the ready queue, how the CPU executes tasks using scheduling algorithms like Round Robin, and how suspension/resumption works in real time. The simulation allows learners to clearly understand abstract scheduling concepts through interactive 3D models.
View SimulationInteractive 3D Simulation of Context Switching: The Time-Sharing Hero of Operating Systems how it works see the Visualise the Invisible Things
Context switching is the backbone of multitasking in operating systems. It allows a single CPU to handle multiple processes by quickly swapping between them — just like pausing a video game, saving your progress, and starting another instantly. By storing a process state and restoring it later, context switching ensures fairness, responsiveness, and efficiency in modern computing, making multitasking and real-time operations possible.
View SimulationComputer Networks Interactive 3D Simulation Visualizing OSI Layer Functions How Data Travels Across OSI Layers
The OSI (Open Systems Interconnection) model explains how data travels across a network in seven layers — from the Application layer where the user interacts, down to the Physical layer where bits move through cables or signals. Each layer has a specific role, such as formatting data, ensuring reliable delivery, routing packets, or handling hardware transmission. Together, these layers make communication seamless between devices, applications, and networks.
View SimulationAbout Me
I’m Sanjay Raghav Reddy, and I created this website to make the invisible aspects of networks and operating systems visible. My goal is to help users understand complex concepts in a simple, interactive, and visual way. By seeing and interacting with these 3D simulations, you can grasp ideas more effectively and remember them forever.
I developed this platform because, during my engineering studies, I found it difficult to understand some topics and couldn’t visualize how they worked. I realized that many students face the same problem learning hard concepts but forgetting them later. This is why I designed this site: to help everyone understand core concepts deeply and inspire them to create new, practical solutions for others.This is especially for engineering students, to make learning easier and more interactive.