After announcing Xbox 360 backwards compatibility at this years E3 keynote for the Xbox One, It seems like Microsoft is going to try and get the original Xbox backwards compatible as well, with Mike Ybarra saying “ We’re not looking at original Xbox games on Xbox One yet” “ Right now the focus is making more Xbox 360 games work, but I would say nothing is impossible. “It would be challenging and really a multi-year engineering investment. Going all the way back to the original certainly would challenge the team”. While it may not happen for a few years yet, original Xbox games on the Xbox One would be awesome to see.

Source:PureXbox