Learn the essential computer science fundamentals that power all modern software — including how code runs, what memory and CPU do, and how programming languages interact with machines. No prior experience needed. This course builds the mindset and foundation for programming, DSA, and interviews.
An Operating System (OS) is the software that manages all the hardware and software in a computer. Without it, your machine is just a collection of parts that can't communicate or function together.
The OS uses a file system to store and organize data on drives.
Think of the operating system like a hotel manager. It doesn’t cook the food or clean the rooms itself, but it coordinates everything — from check-ins, to cleaning staff, to security.
| Feature | Windows | macOS | Linux |
|---|---|---|---|
| License | Commercial | Commercial | Open-source |
| Use Case | Home & Office | Creative Professionals | Developers, Servers |
| Security | Medium | High | Very High |
In the next chapter, we’ll explore What is a Programming Language — and how it allows humans to give logical instructions to machines.
