What is Indexing or page indexing? How do google undertake this task? Is it some thing to do with PR? If it can not be useful in PR then what is the need of having higher index pages?
Well, I don't have exact answer of your question but it is true when Google inedex a page of website is called Google indexing.
Indexing is when the spider records the page (or if we're talking about backlinks the link) and starts displaying the page in search or counting the link for SERP movement.
Indexing is important to page rank. Google and other search engines crawl your site looking at the page and using their algorithm determine how useful your site is.
Indexing is the processing of pages being scanned and an index is created that is used by Google to give results when searched. Gogglebot processes each individual page it crawls to be able to compile a large index of all of the words that it sees and the location on each page. Information is also processed that include important content tags and attributes. This includes Title tags and ALT attributes. Googlebot is able to process a majority of content types.
Indexing is the processing of the pages scanned and is what creates the index that uses Google to give results when you search.Genarally Google will index a new website gradually, the speed by which Google will index all the internal pages will depend on different factors though.
Increase your visibility by submitting and optimizing your website for Google search, and distributing your content across the web.
Indexing means noticing your website and displaying it in the search result. Which position depend on your backlink
Index means that a google bot go to your website and take a picture, then store that picture for further use.
Google indexing is the process of when google's spider visit on your site and take the complete data of your site by visiting one link to another link. This is called google indexing.