There are many sources of emulators, and one resource I can definitely recommend is known as Zophar's domain. There are many websites dedicated to emulations, and places to find emulators, the best step to take is to search Google for an emulator based on the system you are looking to emulate. It is imperative to exercise caution, though, as some viruses will masquerade as emulators, particularly as emulators for current systems.
No, you cannot get Nintendo events for emulators. The emulators do not have the feature to connect by link or by Wi-Fi.
No, emulators are not dangerous. Emulators just help you to play games on your computer. They don't do any harm to your computer at all.
You cannot put emulators on the DS itself, but you have to install them on your PC.
The android market has a number of good emulators, including fpse (playstation). The slide.me market has all the -droid emulators (gearoid, gameboid, psx4droid, etc.) There are some other emulators too, like a great N64 one by paulscode. You will need to google for this.
There are a number of Dreamcast emulators available for download for a PC. Some of the most popular emulators are Demul, MESS, nullDC, and SEGA Visual Simulator.
any DS emulators you can find
emulators
You actually can't. Since those are emulators and not connected with eachother.
well all emulators go into the game folder on your memory card if that's what your asking
I believe there are emulators that you can use. https://www.androidauthority.com/best-android-emulators-for-pc-655308/
Yes.
Yes.