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.
Understanding the difference between software and hardware is one of the first steps to learning computer science. Hardware is what you can touch. Software is what makes hardware useful.
Hardware refers to the physical components of a computer system — the parts you can see and touch.
Software is a collection of programs and data that run on hardware and perform specific tasks.
Software gives instructions, and hardware executes them. For example, when you press a key:
| Aspect | Hardware | Software |
|---|---|---|
| Definition | Physical components | Digital instructions and data |
| Tangible | Yes | No |
| Durability | Subject to wear and tear | Not affected physically |
| Examples | CPU, Monitor, RAM | Windows, Photoshop, Games |
In the next chapter, we’ll explore the basics of an Operating System (OS) — what it is, how it manages your computer, and why it's essential for every modern device.
