1. what are the basic task of a search engine?

• Search engine spiders find and fetch web pages, a process called crawling or spidering, and build lists of words and phrases found on each web page.

2. what help did search engine gave to the user

• A search engine is a software system that is designed to carry out web searches. They search the World Wide Web in a systematic way for particular information specified in a textual web search query. The search results are generally presented in a line of results, often referred to as search engine results pages (SERPs) The information may be a mix of links to web pages, images, videos, infographics, articles, research papers, and other types of files. Some search engines also mine data available in databases or open directories. Unlike web directories, which are maintained only by human editors, search engines also maintain real-time information by running an algorithm on a web crawler. Internet content that is not capable of being searched by a web search engine is generally described as the deep web.

3.How to use search engines?

• To perform a search, you'll need to navigate to a search engine in your web browser, type one or more keywords—also known as search terms—then press Enter on your keyboard. In this example, we'll search for recipes. After you run a search, you'll see a list of relevant websites that match your search terms.

4.Why does bookmarking is used by many web surfers?

• Users save links to web pages that they like or want to share, using a social bookmarking site to store these links. These bookmarks are usually public, and can be viewed by other members of the site where they are stored. ... In many cases, users can also comment or vote on bookmarked items.

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