Unfortunately, it is not real.
No. It is only for the dreamcast and gamecube.
No, the Sony PlayStation 2 av cable will not work on the sega dreamcast.
game controllers,small screen savers,and of course,a dreamcast
There are no dreamcast emulators that will run dreamcast ROMs. The dreamcast is cd-based, so you can either download an emulator like Chankast, and use actual dreamcast CDs (you can get them for a couple of dollars/pounds) or download dreamcast ISOs
No,sadly Sonic Adventure 2 is on Dreamcast.
dreamcast and gamecube
The Dreamcast BIOS is the most basic software chip built into the Dreamcast, it is responsible for managing the basic hardware settings and boot configuration. There is no real reason why anyone would wish to create a BIOS from scratch or significantly modify the existing firmware. Dreamcast emulators require a BIOS file in order to act like the system, however they do not include this software because it is copywrited. In order to use a Dreamcast emulator you need to extract the software from an existing physical Dreamcast unit by use of a serial coder cable.
Sonic Adventure 2 - 2001 VG was released on: USA: 19 June 2001 (Dreamcast version) Japan: 23 June 2001 (Dreamcast version) UK: 23 June 2001 (Dreamcast version)
The Dreamcast cannot emulate itself, however, it is possible to obtain a Dreamcast emulator for a PC. Various emulators, such as Chankast Alpha, exist.
No, it is only for Gamecube and Dreamcast.
No a Dreamcast game will not play on your computer but just putting the disc in there. You would have to play a dreamcast game on a dreamcast system.
There are lot of rumors for 2012 or 2013 release date. I'm sure if there's a community of people desiring it, then Sega will resurrect the Dreamcast. If Sega releases Shenmue 3, on the Xbox 360/PS3 or XBLA/PSN, I believe there will not be a Dreamcast 2 anytime soon. I made a short video of my Dreamcast with VGA Box and audio accessories on my YouTube channel: www.youtube.com/user/davidsdiego