URI stands for Uniform Resource Identifier. It is a string of characters used to identify and locate a resource on the internet. A resource can be anything, such as a web page, a file, or an image.
A URI consists of two parts: the scheme and the identifier. The scheme identifies the protocol that will be used to access the resource, such as HTTP or FTP. The identifier provides specific information about the resource, such as its location or name.
The most common type of URI is the URL (Uniform Resource Locator), which identifies the location of a web page or other online resource. A URL typically consists of a scheme (e.g., http or https), followed by the domain name, and then the specific path to the resource.
Another type of URI is the URN (Uniform Resource Name), which is used to identify resources by name rather than location. URNs are useful for persistent identification of resources, even if their location changes.
Overall, URIs provide a standard way of identifying and locating resources on the internet, making it easier for users to access and share information online.