How does Google save all the billions of pages?

4 posts · originally from https://geek.digit.in/community/threads/how-does-google-save-all-the-billions-of-pages.28598/

I am really intriqued by the amount of data paged by Google. Is it automated or done by real people.

it is done by google bots.
and google dont save all the billions of webpages on their own servers.They just keep their indexes on their servers.And google have more than one lakh servers all across the globe.

Thanks phenom. My other query is do all the pages on the net get indexed or only selected ones.

there is some kind of selection. more updated sites ll be more frequently crawled by google bots. sites with high pagerank will be indexed more deeply. like that.