URI: Full Form and Explanation
Definition of URI:
– URI stands for Uniform Resource Identifier.
Purpose of a URI:
– A URI is a string of characters used to identify a resource either on the internet or within a specific context.
Components of a URI:
– A URI can be subdivided into two main types:
– URL (Uniform Resource Locator): Specifies the location of a resource on the internet and the protocol used to access it (e.g., HTTP, FTP).
– URN (Uniform Resource Name): Identifies a resource by name in a particular namespace, independent of its location (e.g., ISBN for books).
Format of a URI:
– A typical URI format looks like this:
scheme:[//authority]path[?query][#fragment]
– Scheme: Identifies the protocol (e.g., http, https, ftp).
– Authority: Includes information like domain name and port number.
– Path: Indicates the specific location of the resource.
– Query: Optional parameters for additional information.
– Fragment: Points to a specific section within the resource.
Examples of URIs:
– URL Example:
– https://www.example.com/index.html?user=123#section1
– URN Example:
– urn:isbn:0451450523
Importance of URIs:
– Resource Identification: URIs provide a standard way to identify resources, making it easier to share and access content.
– Interoperability: Enables different systems and applications to communicate effectively using a common format.
Conclusion:
– Understanding URIs is essential for web development, digital communication, and resource management on the internet. They serve as the backbone for locating and retrieving resources in an organized manner.