-
Google
How google contains all the information we find for?
-
2 Replies
-
First of all, my friend, that is a great question and really shows you are a curious creature!
So, coming to the answer, Google is not like a book in which someone has written every information there is in the world. Instead, Google is the librarian who knows what information is there in which book. The internet is its library! So, visualise this, whenever someone asks it a question, it knows which book will have the answer to it; so it grabs that notebook from its library, skims through the table of contents, gets to the page that contains the appropriate answer and then shows that answer to the person who questioned about it.
That was a good metaphor to start with. Now in technical terms, you know that the internet is filled with millions of websites, and every webpage contains information related to a specific topic. At the moment a Google search is made, Google identifies the keywords from the search, lists all the webpages that talk about that keyword, then it ranks them according to the number of people who have visited that website. For example, if you search “What is the speed of light in space” Google identifies the keywords ‘speed’, ‘light’ and ‘space’ and then it lists the websites that talk about these words. If it is Wikipedia.com, and it can find the answer in it, and many people have visited this website in the past, Google will most likely give the answer by indexing it from this website as “The speed of light in space is 2.98 x 10<sup>6 </sup>m/s.”
I hope I could explain it to you well. Please reach out if you have any more questions <sup>✌</sup><sup> </sup>
-
Google does not store all the information on the internet. Instead, it uses a process known as web crawling or web indexing to discover and index web pages. Here’s a simplified explanation of how Google works:
-
Web Crawling: Google uses automated programs called crawlers or spiders to systematically browse the internet. These crawlers follow links from one web page to another, collecting information about each page they visit. They start with a list of known web pages and continuously discover new pages by following links.
-
Indexing: As the crawlers visit web pages, they analyze the content and store relevant information in Google’s index. The index is like a massive catalog of web pages, containing information about the page’s content, keywords, meta tags, and other data. This indexed information allows Google to quickly retrieve relevant results when users perform a search.
-
Ranking: When a user enters a search query, Google’s algorithms analyze the index to determine the most relevant web pages. Google considers various factors, such as the page’s content, relevance to the search query, quality of the website, and user signals (e.g., click-through rates, user behavior on the site). The algorithms then assign a ranking to each web page based on these factors.
-
Search Results: Google presents the search results to the user, displaying the web pages that are deemed most relevant and valuable based on the ranking. The results are typically displayed in order of relevance, with the most relevant pages appearing at the top.
It’s important to note that Google’s index is vast, but it doesn’t cover every single web page on the internet. Some pages may not be discoverable by Google’s crawlers due to factors like technical limitations, blocked access, or dynamic content. Additionally, Google’s index is constantly evolving as new web pages are created and existing ones are updated or removed.
Overall, Google’s ability to provide a vast amount of information stems from its continuous web crawling, indexing, and ranking processes, which allow it to offer relevant search results to users based on their queries.
-
