"I see. But why bother installing Linux, if all computers come with Windows anyway?
"Well, not all computers come with Windows, although you might get that impression browsing the shelves at your local computer store. A growing number of hardware manufacturers bundle their machines with Linux for at least two reasons: Linux helps them to keep costs down and gives them more flexibility. Dell, HP, Lenovo, Acer, and ASUSTek are just a few big computer manufacturers that build and sell Linux-based computers. In fact, many innovative machines like netbooks (e.g., ASUSTek Eee PC and Acer Aspire One) and energy-efficient desktops like Linutop use Linux. Moreover, if you buy a used computer, it may come with no system at all, so instead of paying through the nose for a Windows license, you can install Linux on it. Most Linux distros are available free of charge, so you have nothing to lose.
"Free of charge?!
"Yes, free of charge. And before you ask, no, there is no catch. Some companies that develop Linux distributions make money elsewhere, for example offering support and selling Linux-based solutions to big companies."
