Virtual Machines: Running Multiple OS Simultaneously

You can run Windows, Linux, and macOS all at the same time on one PC.

This is possible because of something called a virtual machine, or VM.

Think of it as a computer inside your computer. Software like VMware creates a complete,

fake hardware environment—a virtual CPU, memory, and disk drive. This tricks an operating

system into thinking it’s running on its own private machine. It's how developers

test their apps on different systems without needing a dozen computers. It's the ultimate

digital illusion, and this "computer within a computer" concept powers way more of your tech

than you realize.