A URI, or Uniform Resource Identifier, is a string of characters used to identify a resource on the internet. It provides a simple and extensible means for identifying a resource, whether it's a file, a web page, or an email recipient. URIs encompass URLs (Uniform Resource Locators), which are a specific type of URI that provide a means of locating a resource by describing its primary access mechanism and network location. Understanding URIs is fundamental in web development and internet protocols as they are key in resource identification and retrieval.
