is an intel core M-5y10c Cpu 0.8GHZ 1.ghz good for gaming



4gb and what about assassin creed 3 it is having intel hd graphics 5300 which games can it run
 
You pretty much need a dedicated gpu to play anything from the last decade at a workable frame rate, even then the rest of your system isnt going to keep up, its time for a new computer.
 


what about xbox one
 
An Xbox One is the best choice for you given your situation.
It will run all these games decently enough, is very well optimized and is very cost effective.
If you have a budget of less than 500 USD go for the Xbox. If you have a higher one, let me know what it is and i'll put together a build for you.
 


is xbox one damages when power goes off
 
The Xbox One uses an inbuilt surge protector to prevent overload.
You can plug it into an additional surge protector, but it is unlikely to make any difference given that the xbox surge protector is built directly into the power supply.
It will be perfectly safe to survive a power cut. If it doesn't for some odd reason, Microsoft will replace it and likely give you a reimbursement of some sort.
 


So this means it will not damage my xbox