Google is a very familiar search engine, used by most of the people, who love services, speed, safe and secure browsing, and many more features. Google can result in the information demanded by any user, whether it be information about person, place, city, or anything else, it could be easily fetched on the Internet.
We browse a lot of things on the web and browser Google keeps a record of information that we have been searching about on the web. This information is stored in various forms. A common term is browsing history, with which we are well familiar. While another source of the same is the cookies. The browsed information is also collected in one more form, called cache.
We sometimes clear the history, after browsing. Cookies are served by the websites that are visited by the user, to serve the better browsing experience, letting the user save his information and data, passwords, and user ids. Thus enabling no need to log in each time, since they save passwords of the browsed websites.
It's a good thing to clear cookies and cache regularly. However, due to this one has to log in each time he visits the website, but this will provide a secure medium to surf the web.
Google tracks every search, whether it be about any product, blogging sites, images, videos, youtube, etc. Google provides various applications to browse, such as Google Books, Images, Maps, etc. for safe and secure surfing.