Can both the Xbox One and Xbox 360 have their games played on Windows 10 without the console?

Okay, that's a shame but thanks for the information.

Are there any play anywhere Xbox 360 games or is it only exclusive for Xbox One games?

Hello!

You could have a look here :

https://www.xbox.com/games/xbox-play-anywhere

Okay thank you very much, I have one small question when it comes to streaming. If i were to stream an Xbox 360 game from an Xbox One to my Windows PC, would I be able to control that streamed game with my mouse and keyboard as opposed to a controller while
on my Windows PC playing the streamed game?

No, only controller. You can't use mouse and keyboard in this fashion for any games over xbox one streaming.

You can not play xbox one or xbox 360 games - either on disc or digitally - on a windows 10 PC. The

play anywhere feature is only for those who have purchased the digital copy of the games on that list and it can be played on xbox one and windows 10, that does not apply to xbox 360 games at all.

You CAN stream them from an xbox one to your windows 10 PC using the Streaming feature in the xbox app on windows 10 and then have your xbox one play a backwards compatible game and then stream the xbox one to your PC while it's playing an xbox 360 game
and you can earn achievements that way.

Streaming from xbox one to windows 10 xbox app:
https://support.xbox.com/en-US/games/game-setup/how-to-use-game-streaming

Xbox 360 games that can be played on xbox one:
http://www.xbox.com/en-US/xbox-one/backward-compatibility/available-games

If you own the game digitally it will show up on My Games and Apps > Games > (your game). If you own the disc insert it and download the converted copy and play while the disc is in.