How Unity Works Inside?

[Hardcoal]

Hi.. Can anyone knows what the principle of the way unity works?

when I mean is.. technical details..

Like when youre Coding an object in unity.. and than Press play..
Does it compile the whole map?

anyone who can give an inner insight on how unity works from the inside..
Ill be more than happy to hear.

Cheers

[Hardcoal]

yea thats what i thought more or less it does..
i was asking that because i wanted to compare to my game editor approach