Why add this statement?
What does this mean?
What is the function?
So, we need to google for you, read, collate and process, and then write a brief report for you?
Why are you not able to do that yourself? And then report back here when you find information that you do not fully understand, or seems contradictory, or whatever?
Is your browser broken? Can't be as you managed to post the question above.
Google broken for you? It is working just fine, and has been, for me for the last few days.
PS. and yes, this is sarcasm
PPS. and yes, your posting warrants it