A computer is a device whose main function is to process large amounts of information quickly and accurately, and this procedure is done thanks to hardware and software.
Answer:
Google uses automated programs called spiders or crawlers, just like most search engines, to help generate its search results. Google has a large index of keywords that help determine search results. ... Google uses a trademarked algorithm called PageRank, which assigns each Web page a relevancy score.
Yes, if you download an app such as gmail or yahoo mail. hope this answered your question.