There seem to be two types of questions that are appearing under the emulation tag.
One group of questions centers around using the Raspberry Pi to emulate something else, such as the Atari 2600 console.
Another group of questions concerns questions about the process of virtualizing the Raspberry Pi itself on another PC (for example, on a Linux desktop).
I would like to suggest that these two questions have two separate, specific tags.
- For questions about systems that you're trying to run on the Raspberry Pi, use the emulation tag.
- For questions about virtualizing the Raspberry Pi and running it on other hardware, use the virtualization tag.