A web browser is a software application that, on a user's prompt, retrieves and collects information resources and arranges and displays the resources on the user's computer screen. An information resource is identified by a Uniform Resource Identifier (URI) and may be a web page, image, video, or other piece of content.Hyperlinks present in resources enable users to easily navigate their browsers to related resources.
Although browsers are primarily intended to access the World Wide Web, they can also be used to access information provided by web servers in private networks or files in file systems.
The major web browsers are Windows Internet Explorer, Mozilla Firefox, Apple Safari, Google Chrome, and Opera.