A web browser, shortened to simply browser, is a form of software that’s used to call up websites or general documents and data, like images or PDF documents, and display them in a user-friendly format. Originally, the term ‘to browse’ meant to move backwards and forwards in text using navigation elements. Along with the display of HTML, XHTML, or HTML5 pages, modern internet browsers enable integrated graphics and images as well as elements that are programmed in JavaScript. Additional functions include playback of multimedia content like music or videos, execution of web-based software, and download wizards. Modern browsers are also equipped with various safety functions that they can use to recognize untrustworthy websites. Extra features, like download management, can be added through plugins.
Despite all this, the main role of a browser is still to display content that is requested in the address bar. Tabbed browsing is now supported as standard as well, meaning several websites can be open at the same time. And thanks to the forward and back buttons, users can navigate easily between previously displayed pages. Lastly, when the browser is first opened, the user is taken to a homepage - typically the search engine page favored by browser’s producer.