tecno4

When most people buy a Raspberry PI, they think they need a computer screen. Don't waste your money on unnecessary computer monitors and keyboards. Don't waste your time moving keyboards and monitors between computers. Don't tie up a TV when it's not needed. You can easily use your primary computer to access it.

Running headless (without a display) Raspberry Pi or other Unix systems can be extremely useful. I've used xWindows for many years and it's great when you use graphical displays. In the case of robots, it's often not practical to a monitor because it moves around or it is smaller than a useful screen size. Raspberry PI's can be run off batteries and in locations that make it impractical to have a monitor. Using SSH allows line commands but there are graphical interfaces that are useful.

This instructable is not an xWindows tutorial. It gives you enough information to get started. Don't let the terminology and jargon intimidate you. It's actually quite easy to use basic xWindows.