Uniform Resource Identifier (URI) A Uniform Resource Identifier (URI) is a string of characters that uniquely identifies a resource on the internet. It is used to specify the location and access method for a resource, such as a web page, image, video, or file. Components of a URI ● ● ● ● Scheme: The protocol used to access the resource (e.g., http, https, ftp, mailto). Authority: The host name or IP address of the server hosting the resource. Path: The hierarchical path to the resource within the server. Query: Optional parameters that provide additional information about the resource. ● Fragment: Optional identifier used to reference a specific part of the resource. Example: https://www.example.com/images/logo.png?width=200 In this example: ● ● ● ● Scheme: https (Hypertext Transfer Protocol Secure) Authority: www.example.com Path: /images/logo.png Query: width=200 (specifies the desired width of the image) Types of URIs ● Uniform Resource Locator (URL): A type of URI that specifies the location of a resource on the internet. ● Uniform Resource Name (URN): A type of URI that identifies a resource by name, regardless of its location. Purpose of URIs ● Identifying Resources: URIs provide a unique identifier for each resource on the internet. ● Facilitating Access: URIs allow users to easily locate and access resources using web browsers or other tools. ● Enabling Interoperability: URIs enable different systems and applications to communicate and share information. Conclusion URIs are a fundamental component of the internet, providing a standardized way to identify and access resources. They play a crucial role in enabling the web to function and connect different systems and applications.