They basically comprise of a access method, an address, and a path.
Example:
http://www.merlinsys.com/info.htm
If the previous example, the access method was http:, the address was www.merlinsys.com and the path was info.htm.
For example:
The important difference between the older Gopher protocol and the Web protocols are that the Web display formats are unstructured and can look like anything, while Gopher has a rigid menu structure. Also Web browsers possess knowledge of many more methods of accessing data than gopher clients do. The number of access methods available to Web browsers is bound to increase in the future.