A web browser is a software application that allows users to access websites on the internet. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the users device. The purpose of a web browser is to fetch content from the World Wide Web or from local storage and display it on a users device. The information is transferred using the Hypertext Transfer Protocol (HTTP), which defines how text, images, and video are transmitted on the web.
Some key features of web browsers include:
- URL: A Uniform Resource Locator (URL) is a unique address that identifies a website.
- Tabbed browsing: This feature allows users to open multiple web pages in a single browser window, making it easier to switch between them.
- Bookmarks: Users can save the URLs of their favorite websites as bookmarks, making it easier to access them later.
- History: Web browsers keep a record of the websites that users have visited, allowing them to quickly revisit a site they have previously viewed.
Some examples of popular web browsers include Mozilla Firefox, Google Chrome, Microsoft Edge, and Apple Safari.