Computer Fundamentals

What Is a Virtual Machine? A Virtual Machine (VM) is a software based computer. That runs inside a physical computer. It behaves like a real computer with its own operating system (OS), CPU, memory, storage, and applications. Even though it shares the physical hardware with other virtual machines. Think of a VM as a computer […]

BIOS vs UEFI What They Are, How They Work, and Their Key Differences 2026 Learn what BIOS and UEFI are, how they work, their differences, advantages, and real-life examples. A beginner-friendly guide with FAQs. What are BIOS and UEFI? When you press the power button on your computer, many important processes happen before Windows or

What Is a File System? A file system is the method an operating system uses to store, organize, retrieve, and manage files and folders on a storage device. Such as a hard drive (HDD), solid state drive (SSD), USB flash drive, or memory card. Without a file system, a computer would not know where files

Operating Systems Complete Beginner’s Guide with Examples (2026) Introduction An Operating System (OS) is the most important software that is used for operating a computer or smart device. It acts as a bridge between the user, applications, and the hardware. Without an operating system, a computer cannot function or run programs. Whether you’re using a

Hardware Basics A Beginner’s Guide Every computer, laptop, smartphone, and gaming console is built by using hardware. While software provides instructions to hardware for performing the specific task.  Understanding the hardware basics. That is one of the first steps toward learning computer science, programming, cybersecurity, or IT support. In this tutorial, you’ll learn what hardware